Most of the clips online that show Corden singing are tongue-in-cheek, though his voice does come off as serviceable.
The Soviet Union had a serviceable ideology, communism, which appealed to people all over the world.
As a means of fixing the fundamental problem of adapting Gatsby, the conceit does a serviceable job of correcting a deficit.
"ready to do service," early 14c., from Old French servicable, from servise (see service (n.1)). Related: Serviceability.
Edgar: I know thee well: a serviceable villain,
As duteous to the vices of thy mistress
As badness would desire.
["King Lear," Act IV, Scene vi]