`Baby` hitmaker Justin Bieber plays babysitter

Los Angeles: Singer Justin Bieber turned babysitter when he agreed to look after basketball player Chris Paul`s three-year-old son.

The 18-year-old "Baby" hitmaker was spotted courtside at the Staples Center here with the baby as Paul`s team took on the Boston Celtics, reports contactmusic.com.

"Justin appeared to be more than happy to hang out with young Chris. The pair were smiling, giggling and playing - and cheering on dad`s team as they crushed the Celtics 106-77," said an eyewitness.