Topless punk rocker performing streaptesse on Jennifer Lopez red face in American Idol

As American Idol fans will know, Jennifer Lopez is a big fan of blusher.

But on last night’s results show it wasn’t her over-zealous make-up application that left her red faced.

Instead the 41-year-old singer became rather flushed after guest entertainer Iggy Pop gyrated his hips just inches from her face during his performance.

Oh please, Jennifer Lopez looks down in shock as Iggy Pop thrusts his hips just inches away from her face as he performs on the American Idol results show

Wild One! The topless punk rocker was showing no signs of toning down his act

At 63, the punk rocker is showing no signs of toning down his act as he thrust his way through a rendition of Wild One.

And as he singled J-Lo out for special attention, she didn’t know where to look.

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She reacted by putting her head in her hands and was the last judge to her feet to applaud the legendary star after his performance.

Look away now, Iggy approached the judges midway through his performance

J-Glow, After he had finished performing J-Lo was the last judge to stand and applaud him

The amusing scenes came on a dramatic night which saw favourite Pia Toscano sent packing - leaving just eight contestants to battle it out.

Toscano was kicked off the singing competition after the viewer vote, much to the dismay of the judges.

’I can’t believe what just happened here,’ said J-Lo. ’I’m shocked and angry - I don’t know what to say.

Randy Jackson added ’I’m with Jennifer, all in shock. You were one of the best singers in this.’

Russell Brand also made a surprise appearance - as a charisma coach for contestants.