C AllStar is a Hong Kong Cantopop boy band formed through a singing contest Star Hunt (星投大戰) held by Kingdom C in 2009. The group consists of four members: King Wu, Kenny Chan, Andy Leung, and Jase Ho. They debuted with the album Make It Happen in 2010.

The group is best known for their acappella singing. They have won various music awards since their debut, including four times Ultimate Song Chart Award for Group of the Year (Gold), four times JSG Awards Presentation Best Musical Group, etc.