By Sarah Bull
She's known to have a thing for the younger man, as she is currently dating a dancer 18 years her junior.
So who could blame Jennifer Lopez, 42, for looking pretty enamoured with The Wanted singer Max George as the boys took to the stage to perform on American Idol.
Jennifer was seen clapping along and cheering as the five-piece British band belted out one of their greatest hits, Glad You Came, before cheeky Max, 23, decided to take advantage of the Idol judge's soft spot for him.
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Superstar new fan: The Wanted's Max George and Jennifer Lopez cosied up backstage after the band's performance on American Idol
Meet my mates! Jennifer also posed up with the rest of The Wanted ahead of their performance
Coming up behind the panel of judges, Max pats Randy Jackson on the shoulder before moving his attentions on to a clearly delighted Jennifer, who spins around in her chair and dances while she is serenaded.
Jennifer is then seen grabbing Max around the waist for a hug as he belts out the tune, before the singer is later seen cheekily grabbing Lopez for a kiss before making his way back to the stage for the closing notes of the track.
Max later took to his Twitter page to tell fans how much he had enjoyed performing on the show, writing: 'One of the best days of my life...thanks america!!'
Sweet serenade: Max was seen singing directly to Jennifer as the group performed Glad You Came
She does like a toyboy! Jennifer was seen dancing along in her chair during the performance, before turning around to give Max a big hug around the waist
He then shared a picture of himself and Jennifer cosying up backstage, with the caption: '@JLo youre awesome!!!! X'
Going for it: Cheeky Max then came up behind Jennifer and gave her a big kiss
However, it remains to be seen exactly what Max's fiancÃ©e Michelle Keegan and Jennifer's toyboy Casper Smart make of the pair's new friendship.
As well as posing up with Jennifer, Max and his Wanted bandmates Siva Kaneswaran, Jay McGuiness, Tom Parker and Nathan Sykes shared pictures of themselves with the singer's fellow judges Randy Jackson and Steven Tyler, before also posting a shot with US designer Tommy Hilfiger.
After the performance, the boys wrote on their Twitter page: 'Thank you to everyone who tuned in tonight... that was the most unbelievable experience to date #TheWantedOnIdol.'
They later added: 'Thank you again to everyone for sharing a special moment with us today #TheWantedOnIdol.'
The Wanted's performance on Idol is the latest indication that their success in America is here to stay.
And the boys said in a recent interview that they are hoping to emulate the success of The Beatles.
Belting it out: The group were met with cheers and screams from the audience following their energetic rendition of Glad You Came
Did you like that? Jennifer and fellow judge Randy Jackson applauded enthusiastically after the performance
Jay explained to Closer magazine: 'We want to become a huge global act and be able to go to every country and sell out a gig. In all honesty, we want to be as big as The Beatles.'
Jay also said that while another British band are making a splash Stateside, they are not rivals with One Direction.
He added: 'The Wanted and One Direction are in two different arenas. One Direction are smashing the teen magazines and doing the Justin Bieber kind of thing.
Posing up: The boys also posed for a photo with Randy and the third Idol judge, Steven Tyler
Having fun: The boys were accompanied by a group of scantily-clad sexy female dancers
'I'm glad they're doing so well because I've met them and think they're really nice. But we swear in interviews and don't have their cute little faces, so a lot of the teenage magazines tend to avoid us.
'Our music gets played in the clubs and on the radio, so we have very different audiences.
The man behind the clothing range: The boys also posed for a photo with US designer Tommy Hilfiger
Anticipation: The boys posted a shot of the sign outside their dressing room, as well as a picture of themselves gearing up for the performance of their lives