Britney Spears Tour: It's Opening Night BITCH!

Britney Spears is back in a big way.

Kicking off her Femme Fatale tour on Thursday in Sacramento, Calif., the star said it all with this pre-concert Tweet: "It's Opening Night BITCH!!!!"

Her impressively long 22-song set, which spanned singles from "Toxic" to "Till The World Ends," was well-received by local media and the crowd.

Here's a clip from "Lace & Leather" ...

Britney Spears - Lace & Leather (Live)

"Britney Spears performed like a pro throughout the show, hitting all her marks ... she seemed at ease," The Sacramento Bee's Carla Meyer wrote.

"The sellout crowd - composed mainly of young women who were kids when Spears became a star - were thrilled from the start by her stellar pop songs."

Pretty positive review, no? Jamie Spears deserves that raise!