Katy Perry at MTV Europe Music Awards 2008 held at the Echo Arena - Arrivals, Liverpool, England - 61108

The sexy singer thrilled the crowds at the awards bash in Liverpool, England - changing costumes 12 times and flying through the air on a huge plastic banana.

And the partygirl star maintained her wild antics behind the scenes - knocking back booze with the All Summer Long rocker.

He tells Britain's Daily Star newspaper, "I got Katy drunk in Liverpool at the MTV awards; she's a nice girl. I thought she was British but she's from California.

"We were just shooting the s**t and I guess we overdid it."

And Kid Rock has plans for his gay pal Sir Elton John to cover Perry's breakout anthem I Kissed A Girl.

He adds, "I will pitch it to him. But I need to buy him a Christmas present first, something really dirty."

Source: WENN