Thousands of fans would give their left foot  for a chance to hang backstage with Jason DeRulo.

And on Friday night, the impeccably  well-built singer’s girlfriend Jordin Sparks got to go one step further and wipe  down his sweaty, toned abs with a towel immediately after he stormed the stage  for KIIS FM’s Jingle Bells concert in Los Angeles.

The physical evidence made it clear that the  24-year-old Marry Me singer had worked hard out there, where the likes of Miley  Cyrus, Selena Gomez and Robin Thicke also performed.

The perks of going backstage! Jordin Sparks greeted her  boyfriend Jason DeRulo backstage after his performance at the KIIS FM Jingle  Ball in Los Angeles only to find him sweaty and shirtless

‘I think I wanna marry you’: The star put it all on show  during the concert

 

Jason literally looked as though he’d just  stepped out of a rainstorm as he departed the Staples Centre  stage, only to rip  off his shirt and reveal waterfalls of sweat.

With only his soaked leather pants and  microphone remaining on his body, the singer needed no introduction as he showed  off his near-perfect  physique complete with a solid set of abs and outrageous  biceps.

Clearly on a high from his performance – or  perhaps just excited to see his  gorgeous girlfriend – he grinned from ear to  eat in spite of the fact  that he was surely beyond exhausted.

Up close and personal: The 23-year-old singer helped her  beau wipe the sweat from his ripped abs

Before the sweat: The pair of loved up singers posed  together at the concert which took place at the Staples Centre in Downtown Los  Angeles

That’s impressive! At one point, the singer stood on the  knee and shoulder of another man on stage showing off his balancing  skills

 

Jordin was on hand and ready to help  her  highly attractive boyfriend deal with his soggy situation, snuggling up beside  him with a fresh towel, ready to pat down his abs.

The American Idol starlet, 23, was positively  beaming alongside her beau, clearly content about lending a hand.

But she seemed to be feeling the cold a  little more than Jason, so she  added a cosy scarf to her all-black ensemble as  she joined him  backstage.

Here it is! Jason gave the audience a sneak peak of his  toned abs before he took off his shirt

With the band! Jordin was there to support her boyfriend  Jason who was performing alongside the likes of Miley Cyrus and Robin Thicke

Getting into it: Jason showed the microphone his love as  his trousers fell down a little bit

 

Working the crowd: Jason wore slick leather pants and  ensured all eyes were on him

With her hair styled in tight  ringlets,  Jordin was glowing both backstage and as she joined her  man afterwards to leave  the star-studded event.

Jason later deemed it necessary to put some  clothes on, so he kitted himself  out in a monochrome ensemble laden with  leather and including a tight  T-shirt to continue showing off his photo-ready  definition.

The concert, which donated $1 per ticket to  the Ryan Seacrest Foundation,  showcased an array of musical talent including  Miley Cyrus, Selena  Gomez, Robin Thicke, Macklemore & Ryan Lewis, Enrique  Iglesias,  Ariana Grande and Austin Mahone.

And of course Miley is never one to  disappoint, so her attention-seeking move of the evening was twerking on Santa  Claus.

Not a bad angle: It was difficult for the star to look  bad from any perspective with that body

Taking a seat: Jason sat his rear down on top of a  number of his friendly dancers on stage

 

The bulge: Jason’s biceps nearly exploded when he cosied  up next to Pitbull

Stage time: The singer belted out one of his most  recognized tunes, Marry Me, at the event

Surprising nobody: Miley Cyrus is never one to  disappoint, so her attention-seeking move of the evening was twerking on Santa  Claus at the Jingle Bells concert

Read more: DailyMail