VIDEO: Yikes! Mariah Carey Refuses To Give Fellow Diva J.Lo A Standing Ovation

Talk about making a point...

When former American Idol judge Jennifer Lopez threw her hands in the air after her 10-minute energetic performance on the show's season finale, the place erupted.

Streamers came through the air, the crowd screamed, the judges were on their feet.

All except Mariah. A demure clap was enough from her. Could you make it any more obvious Carey?!

The singer kept a fixed smile on her face but refused to join the other three judges in giving Lopez a standing ovation. She played a bit with the streamers in front of her instead.

Eh, Mariah? The singer makes a point... 

The pair have a history of controversy together, that goes all the way back to the time when Carey's ex-husband Tommy Mottola gave material she'd selected for her Glitter soundtrack to Lopez after she'd left his label, Us People reports.

Ouch. Let's hope Cowell doesn't put the two of them on the panel together next year...