They may have been dating since 2017, but Ashton Irwin and Kaitlin Blaisdell still appear to be in the throes of newfound love.

The Australian musicians of 5 Seconds of Summer have been friends since they went to high school in New South Wales. And on Thursday, Ashton Irwin and Callum Hood got coffee together in LA.

 5 Seconds of Summer frontman Luke Hemmings just celebrated his 23rd birthday, taking to Instagram to thank fans for the sweet messages

He's been hard at work recording 5 Seconds of Summer's fourth studio album.

 5 Seconds of Summer's singer Luke Hemmings has been happily dating girlfriend Serra Deaton since last February.

They made a spectacular comeback last year with their Youngblood album.

Proving just how far they've come, Australian punk-rock band 5 Seconds Of Summer were one of the headline acts at this year's KISS 108's iHeartRadio Jingle Ball in Boston on Sunday.

He has been busy in the recording studio with his band 5SOS in the lead up to their fourth album over the past year. 

They are celebrating their four-year anniversary together this week.

The 24-year-old guitarist, who is engaged to model Crystal Leigh, told Fitzy & Wippa at the G'Day USA gala in Los Angeles on Saturday that he'd asked the 5SOS boys to be his groomsmen

He proposed to his model girlfriend Crystal Leigh in July 2019.

5 Seconds of Summer's Calum Hood is currently entering Day 8 of self-isolation amid the COVID-19 outbreak. 

The boys from 5 Seconds of Summer have previously been accused by fans of putting on 'fake American accents.'

All four members of the Australian band 5 Seconds of Summer (5SOS) grew-up Down Under. 

His official spokesman said today that he was receiving 'updates on the coronavirus response' and spoke to Foreign Secretary Dominic Raab and Matt Hancock, the Health Secretary, yesterday.

Mr Cummings' name was on a leaked list of members of the Scientific Advisory Group for Emergencies (SAGE) as far back as February. 

EXCLUSIVE INTERVIEW BY OLIVER HOLT: When he returned from Rio, Sbihi's rocket trajectory began to flatten. Those astonishing ergo numbers dipped. His struggles became an open secret.

DAN HODGES: When the coronavirus crisis began, Boris Johnson wanted to follow the science. But thanks to the paranoia of the Chinese government, there was little science to follow.

British businessman Steve Walsh was one of Britain's first coronavirus superspreaders and his movements were analysed by scientists to help develop an immunity test.

Ministers have ordered production of up to 50 million new immunity tests as part of what experts hope will be a 'game-changing' development in the battle against Covid-19.

The former Brexit secretary David Davis said that Cummings's presence could alter the advice offered in meetings. It was last night revealed the PM's chief aide had attended Sage meetings.

Care home nurse Larni Zuniga, 54, was a married father originally from the Philippines who had worked in Britain for 12 years and had not seen his family for five years.

The Prime Minister is back at work and addressed the nation from Downing Street where he labelled coronavirus an 'invisible mugger' after his own personal experience facing off the deadly illness.

B&Q's decision to reopen 130 stores saw massive queues forming outside its outlets in Watford (pictured), Edinburgh, Bristol and Swansea, as people used the shutdown to catch up on DIY.

He emerged hesitantly, tiptoeing gently down the steps of Downing Street like a winter swimmer wading into the icy foam.

STEPHEN GLOVER: Many people will have been uplifted by Boris Johnson's (pictured) stirring speech yesterday outside No 10.

Boris Johnson, who battled the illness himself, including a spell in intensive care, will observe the minute's silence on Tuesday at 11am. Government workers will be asked to take part.

New guidance is being issued to councils on refuse and recycling sites as the government inches the country back towards a semblance of normal activity.

People across Britain paused for a minute at 11am in sombre tribute to the sacrifice made by those on the front line, in roles ranging from doctors and nurses to carers, cleaners and bus drivers.

Slides displayed at the daily Downing Street briefing held by Matt Hancock showed that it is now saying there must be no second peak 'that overwhelms the NHS'.

Ruth Cadbury, 60, tweeted minutes after the birth was announced this morning, saying: 'It appears Boris Johnson has just found yet another excuse to miss PMQs.' She later deleted it.

Boris Johnson, 55, and Carrie Symonds, 32, welcomed a son today, with psychologist Jo Hemmings telling FEMAIL it may have been 'an emotional epiphany' for the British Prime Minister.

Key details from 'Project Restart' have emerged with the Premier League 'sending out a restart schedule to clubs' and full training to resume in three weeks.

Having chaired Cabinet this morning, Boris Johnson said on Twitter that he 'understands the impatience' of people to end the draconian restrictions crippling the economy.

The 71-year-old multi-millionaire flew on a private jet to his £3 million villa on the Algarve where he said he would spend 14 days in quarantine although restrictions will actually be lifted in three.

Adam Marshall, director general of the British Chambers of Commerce, made the astonishing revelation as pressure increased on Boris Johnson to plot a way out of the crisis.

The Scientific Advisory Group for Emergencies (SAGE) is expected today to publish key data which informed the government's decision to put the UK into coronavirus lockdown.

Prime Minister Boris Johnson last night put the reproduction rate of the coronavirus at the heart of Britain's crisis and said he would not do anything which risks triggering another outbreak.

Some 46 per cent of those surveyed said they would 'strongly support' the decision to extend lockdown, according to a new YouGov poll of 3152 adults.

Ministers could put individual towns and cities back on lockdown if they see coronavirus cases rise again once restrictions are relaxed.Boris Johnson will publish a 'roadmap' on Thursday for easing rules.

The Mail on Sunday has learnt that Carrie Symonds chose a picture that deliberately did not show the baby's face and will shun the path taken by past PMs who had babies while in Downing Street.

Sir David King's group will run parallel to the Scientific Advisory Group for Emergencies which has been guiding Boris Johnson's coronavirus crisis response.

A leading doctor who helped save Boris Johnson's life says coronavirus is 'this generation's polio' and warned it will have long-term effects on patients.

Selectively lifting lockdown measures could lead to resentment and anger among left-behind groups, an 'alternative SAGE' panel of experts warned today.

The deputy chief medical officer for England, Professor Jonathan Van-Tam ,said there remained 'challenges' to be overcome before the ticklist could be completed.

In the UK there are two main contenders in the vaccine race: a team at the University of Oxford, and another at Imperial College London.

EU disease control chief Andrea Ammon said the UK was one of five European countries along with Poland, Romania, Sweden and Bulgaria which have yet to see a downward trend in cases.

Newly-released records on the advice given to the government as the coronavirus crisis erupted show Boris Johnson seemingly flouted the recommendations from his own experts.

London markets rebounded this morning and opened up by 1.6 per cent after US stocks staged a late rally and European countries start to ease coronavirus restrictions.

Boris Johnson's second wife Marina Wheeler, 55, shares four of the Prime Minister's six children and applied for a decree absolute in February - it has now been granted.