Katy Perry was "speechless" after discovering she had received nine MTV Video Music Awards nominations.

The 26-year-old singer is up for the most prizes at the prestigious event in Los Angeles next month - including Best Pop Video for 'Last Friday Night (T.G.I.F)', Best Female Video for 'Firework' and Best Cinematography for 'Teenage Dream' - and she is stunned by the news.

She wrote on her twitter page: "OMG! I just got word that I'm nominated for 9 MTV VIDEO MUSIC AWARDS!!! I'm kinda speechless/nervous/turned on!

"I can't sleep . I'm so excited . It feels like every birthday/christmas/first kiss I ever had. Thanks so much for believing In Me. I owe u."

Katy - who is married to Russell Brand - wants her loyal fans to go and vote for her to win and she is already thinking about what daring dresses she is going to wear to the ceremony.

She added in another tweet: "now . u have to VOTE! Go to www.mtv.com to vote for ur favorite videos ... (u can pick mine if u fancy) ... Off to dream up the outfit(s)! (sic)"