The first annual “Light Up Las Vegas” charity event to benefit the UC San Diego Nevada Cancer Institute was hosted on Sunday evening at Sin City hot spot 1 OAK at The Mirage (Pictured above: John Legend – Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net).

John Legend performs at 1 OAK Las Vegas
Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net.
John Legend and T-Pain performed live for the fete, where all proceeds and ticket sales were donated to the charity. Legend performed an exclusive 3-song set while T-Pain went on to perform for nearly an hour, including his hits “Black & Yellow” and “All I do Is Win.” Partygoers, including 1 OAK co-owners Scott Sartiano and Richie Akiva as well as 1 OAK Las Vegas managing partner Eli Pacino, were on their feet, dancing and partying the night away into the early hours of Monday morning.

John Legend at 1 OAK Las Vegas
Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net.

John Legend and Richie Akiva
Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net.

John Legend on red carpet at 1 OAK
Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net.

T-Pain at 1 OAK
Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net.

T-Pain at 1 OAK
Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net.

T-Pain performs at 1 OAK
Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net.