Katy Perry, 24, has embarked on her world tour to promote California Dreams 2011 and the first stop was Lisbon, playing the Campo Pequeno, where she sang LIVE. Yes live and not just her own songs.

Katy Perry Gets Personal – 2011 Grammy Awards Performance (Video)

Adam Lambert, Miley Cyrus, Katy Perry, Whitney Houston & Others Honor David Geffen

She paid tribute to her bestie Rihanna who turned 23 on Sunday, by singing Only Girl In The World and wishing her a happy birthday. She also covered Willow Smith’s ‘Whip My Hair‘ and Jay-Z’s “Big Pimpin’.

Bedazzled fake flute playing be damned, those vocal lessons have been paying off! She sounded pretty damned good. It didn’t make me want to ram sharp objects into my ears.

What do you think?