American Music Awards 2011: Katy Perry flies solo without Russell Brand

Katy Perry gets some support from the girls at the AMA”s as she flies solo on the red carpet

All the girls: Selena Gomez, Nicki Minaj, Katy Perry, and Taylor Swift stick together at the AMA

All the girls: Selena Gomez, Nicki Minaj, Katy Perry, and Taylor Swift stick together at the AMA”s last night

Sheer audacity: Katy wore a bejewelled corset and sheer skirt number

Sheer audacity: Katy wore a bejewelled corset and sheer skirt number

Girl power: Katy Perry laughed off rumours her marriage is in trouble at the AMA

Girl power: Katy Perry laughed off rumours her marriage is in trouble at the AMA”s last night, seen here with Selena Gomez

The girl with the three outfit changes: Katy stuns in Vivienne Westwood dress The girl with the three outfit changes: Katy stuns in Vivienne Westwood dress

The girl with the three outfit changes: Katy stuns in Vivienne Westwood dress

Perfect in pink: Katy Perry

Perfect in pink: Katy Perry”s outfit outshines Heidi Klum backstage at the awards

Surprise award: Heidi Klum presents singer Katy Perry with an achievement award

Surprise award: Heidi Klum presents singer Katy Perry with an achievement award

I kissed a girl..: Katy Perry looks very grateful to be presented with her award, previous winners include Micheal Jackson

I kissed a girl..: Katy Perry looks very grateful to be presented with her award, previous winners include Micheal Jackson

Rumour mill: Katy Perry shrugged off speculation her marriage was on the rocks at the AMA Rumour mill: Katy Perry shrugged off speculation her marriage was on the rocks at the AMA

Rumour mill: Katy Perry shrugged off speculation her marriage was on the rocks at the AMA”s

Happy: Katy Perry later tweeted she an

Happy: Katy Perry later tweeted she an “amazing night”

Denials: The couple at the Get Him To The Greek premiere last year, rumours are that their marriage is in trouble

Denials: The couple at the Get Him To The Greek premiere last year, rumours are that their marriage is in trouble