The Millennium Tour made its second stop at Little Ceaser Arena on Saturday night, part of its 24-city run. The nostalgic hip-hop and R&B concert series featured headliners Bow Wow, Omarion, and Trey Songz, and also featured Plies, Boosie, Ying Yang Twins, RSVP, Nivea, and special guest Rick Ross. The great thing about concerts like the Millennium Tour is that because there are so many acts in the line-up, artists are focused on delivering their biggest hits and not squeezing in new material or album fillers.