Justin Bieber Shows Selena Gomez the Ropes of Basketball at Miami Heat vs. Dallas Mavs Game 4

Justin Bieber and Selena Gomez found themselves back in Texas last night, only this time, it was much to the Biebs' benefit. The two teens caught Game 4 of the NBA Finals in Dallas, and the 'Baby' singer seemed to be explaining the rules of the game to his Disney lady while they watched.

Bieber was even kind enough to keep his 10 million Twitter followers up to date on the score along the way. "NBA FINALS tonight...gonna be crazy. who you got? MAVS or HEAT?" he tweeted early in the night, followed by a fourth quarter score update. We hope Bieber and Gomez were rooting for the home team, because Dallas erupted last night when the Mavericks tied up the series against the Miami Heat.

Lucky for Bieber, an avid basketball fan, Game 5 isn't until tomorrow. Tonight, the Biebs will be in Nashville rooting for his own team -- his 'That Should Be Me' video with country crooners Rascal Flatts is up for collaborative video of the year.

Watch the Justin Bieber 'That Should Be Me' Video Feat. Rascal Flatts