The titans announced their first-ever co-headlining tour, “The Boy Is Mine,” on Tuesday, paying homage to their 1998 hit of the same name. Kelly Rowland, Muni Long and recent “American Idol” winner Jamal Roberts are scheduled to appear as special guests along the road.

Brandy and Monica announce their "The Boy Is Mine" tour, including special guests and set to start in October.

Actually, the boy is theirs. Nearly 30 years after they topped the Billboard Hot 100 for 13 weeks with their timeless duet "The Boy Is Mine," Brandy and Monica are teaming up for their first-ever co-headlining tour.