JoJo belts out a tune with Timbaland on stage at his Shock Value II album release concert sponsored by Verizon and Blackberry held at the Fontainebleau Miami Beach Hotel on Saturday night (December 5).

The 18-year-old songstress tweeted after her performance, “At LIV celebrating Timbaland‘s SV2 album release! Just performed, couldn’t hear myself very well but had a great time!!! Xx.”

JoJo also snapped a pic with singer Brandy — they both appear on the new album, out in stores TOMORROW, December 8th.

10+ pics inside of Shock Value JoJo…