Back to work! Five Seconds Of Summer touch down at LAX to continue world tour after spending a few days on home soil in Sydney 

They spent some time with friends and family Down Under.

But now the 5 Seconds Of Summer boys are back on their world tour grind.

Luke Hemmings, Calum Hood and Michael Clifford were spotted touching down at LAX on Friday - a week ahead of their next show in Las Vegas.

America bound: Five Seconds Of Summer were spotted arriving at LAX on Friday 

America bound: Five Seconds Of Summer were spotted arriving at LAX on Friday 

Luke, the youngest of the group at 18, was clad in a mostly black outfit of boots, jeans and a T-shirt - adding some colour with a red checkered shirt. 

Calum, 19, was seen in a mostly monochrome outfit being ushered through the chaotic terminal.

Michael, also 19, trailed behind in a denim jacket and a T-shirt that paid homage to legendary Australian band AC/DC.

The trio caused quite the fuss, with fans and photographers seen clamouring about them as they strolled through.  

Leading the pack: Luke, the youngest of the group at 18, was clad in a mostly black outfit of boots, jeans and a T-shirt - adding some colour with a red checkered shirt

Leading the pack: Luke, the youngest of the group at 18, was clad in a mostly black outfit of boots, jeans and a T-shirt - adding some colour with a red checkered shirt

Back to work! Luke, Calum Hood and Michael Clifford flew in from Sydney, where they were spending time with family and friends
Back to work! Luke, Calum Hood and Michael Clifford flew in from Sydney, where they were spending time with family and friends

Back to work! Luke, Calum Hood and Michael Clifford flew in from Sydney, where they were spending time with family and friends

Black and white: Calum was seen in a mostly monochrome outfit being ushered through the chaotic terminal.

Black and white: Calum was seen in a mostly monochrome outfit being ushered through the chaotic terminal.

Absent was Ashton Irwin, 21, who arrived in the States days earlier - and was seen celebrating his 21st birthday with his first legal US beer on Instagram.

The foursome are currently on their Rock Out With Your Socks Out world tour, having just finished its Australian leg. 

After the last show Down Under - in Perth on June 29 - the group flew to Sydney to spend time with family and friends. 

Their next tour date is July 17 in Las Vegas, with the band playing in America until the tour ends in September. 

On tour: Their next tour date is July 17 in Las Vegas, with the band playing in America until the tour ends in September

On tour: Their next tour date is July 17 in Las Vegas, with the band playing in America until the tour ends in September

Tribute: Michael, also 19, trailed behind in a denim jacket and a T-shirt that paid homage to legendary Australian band AC/DC
Tribute: Michael, also 19, trailed behind in a denim jacket and a T-shirt that paid homage to legendary Australian band AC/DC

Tribute: Michael, also 19, trailed behind in a denim jacket and a T-shirt that paid homage to legendary Australian band AC/DC

Ahead of the group: Absent was Ashton Irwin, 21, who arrived in the States days earlier - and was seen celebrating his 21st birthday with his first legal US beer on Instagram

Ahead of the group: Absent was Ashton Irwin, 21, who arrived in the States days earlier - and was seen celebrating his 21st birthday with his first legal US beer on Instagram

The comments below have not been moderated.

The views expressed in the contents above are those of our users and do not necessarily reflect the views of MailOnline.

By posting your comment you agree to our house rules.

Who is this week's top commenter? Find out now