High on the promotional trail for her new album, Femme Fatale,
Britney Spears gave a surprise mini-concert at RAIN nightclub in Las Vegas Friday. With flamboyant costumes and "huge" dance numbers, she performed singles "Till The World Ends," "Hold It Against Me" and "Big Fat Bass." The album hits stores on March 29.
See those performances below:
"Till The World Ends" (clip)
"Hold It Against Me" (clip)
"Big Fat Bass" (clip)
Sources via That Grape Juice & Neon Limelight