[4] After moving to Los Angeles, he obtained numerous studio and group singing gigs, including Dalton Academy "Warbler #6" on an episode of Glee,[5] the Sundance Film Festival, and the AFI Life Achievement Award 2010.

[6] His studio work has been featured in the film Avatar, Glee: The 3D Concert Movie, Letters to Juliet, Tangled, Sex and the City 2, The Smurfs, 2012 and The Philanthropist.

was featured in a commercial[8] for season two of Khloé & Lamar, and he has recorded music with Heather Headley, performed with Katharine McPhee, and toured with India Arie and Idina Menzel.

[9] He was initially chosen by judges Christina Aguilera and Cee Lo Green after singing Andrea Bocelli's "Because We Believe (Ama Credi E Vai)".

In his first live show, he performed "Bridge over Troubled Water" by Simon & Garfunkel, which earned him a pass to the next round by public vote.

During the quarter-finals, he covered "Viva la Vida" by Coldplay, and was again selected for advancement to the semi-finals by public vote.

[17] While preparing for the second leg of the tour to promote Roads, Mann announced he had also recorded a Christmas special for PBS.

[23] Mann married his longtime girlfriend, Laura Perloe, in 2013 at Maravilla Gardens in Camarillo, Ventura County in Southern California.