Lucy Pearl Retools

November 7 -- The R&B supergroup Lucy Pearl has made its first lineup change, replacing former En Vogue singer Dawn Robinson.

The other two members of the group, Tony Toni Toné's Raphael Saadiq and A Tribe Called Quest's Ali Shaheed Muhammad, will be joined by the one-named solo artist Joi, who has worked with Dallas Austin and the Goodie Mob. No reason was given for Robinson's departure.

"I've always wanted to collaborate with Joi; I always loved her vibe," Saadiq said in a statement. "She's funky and she's soulful, so I felt that it was a natural progression for Joi to work with us in this capacity."

"This is a tremendous opportunity for me to get down with some folks who are doing the music that I like to do," said Joi, who has a solo album due next year. "I'm ecstatic about working with someone of Raphael and Ali's artistry. I can't wait for us to do this the way it's supposed to be done."