Seven concerts. Seven cities. Seven days.

Rihanna began her "777" tour in Mexico City Wednesday night with an exclusive party for about 2,000 fans.

Dressed in black shorts, a small black top and a black boxing robe, Rihanna was welcomed on the stage of the El Plaza Condesa concert hall with an ovation despite being two hours late. She thanked fans for their patience.

"This is incredible! Thank you very much for your patience. You really make me feel loved here," said the 24-year-old singer before opening the concert with "Cockiness (Love It)."

The show was a taste of what's to come in her "Diamonds World Tour" scheduled for the first half of 2013.

Rihanna arrived in Mexico City on a Boeing 777, which will take her to Toronto, Stockholm, Paris, Berlin, London and finally New York, where she will complete the grueling tour and present her latest album, "Unapologetic."

She also sang "Fresh Off The Runway" and "Diamonds" from her new album, which features collaborations with Eminem, David Guetta, Future and former boyfriend, Chris Brown.

"We've waited a long time to get back here, Mexico City!" said the singer.