Mike & Mike explore what Justin Bieber will do if his scheduled concert at Quicken Loans Arena gets bumped should the Cavaliers playoff series against the Pistons go past four games. (1:56)

What happens to Bieber if Cavs-Pistons goes five games? (1:56)

CLEVELAND -- LeBron James and the Cleveland Cavaliers may have a conflict with the Biebs.

If Cleveland's opening-round NBA playoff series against Detroit goes to five games, the April 26 game would bump a show planned by pop singer Justin Bieber at Quicken Loans Arena.

A sweep by the top-seeded Cavaliers over the eighth-seeded Pistons in the best-of-seven series would avoid any potential problem. However, Detroit beat Cleveland twice during the regular season so winning a game would be no surprise.

The Cavs are working with tour organizers on a contingency plan with new dates for the Bieber show in case the events overlap. Cleveland is one stop on Bieber's Purpose World Tour.

A big sports fan, Bieber attended James' first game back in Cleveland in 2014 after he re-signed with the Cavaliers following four years in Miami.

Cleveland will host Detroit in Game 1 of the series on Sunday.