Rondor walking with Underdogs.

Rondor Music has entered into a joint-venture co-publishing deal with production and songwriting duo the Underdogs. Under the deal, the Underdogs — aka Harvey Mason Jr. and Damon Thomas — also will seek out and develop new songwriting talent for Rondor. The deal builds Mason and Thomas' Underdog brand. Last year, the duo inked a two-year joint-venture label deal for Underdog Entertainment with Clive Davis' J Records. The Underdogs have collaborated with such acts as Justin Timberlake, Tyrese, Toni Braxton, Mariah Carey, Pink, B2K, Brandy, Jennifer Lopez, Luther Vandross and Brian McKnight.