Ballmer, the former Microsoft CEO who's known for his emotional speeches, was quite excited.
He even gave the crowd his email address (firstname.lastname@example.org).
Here is the video.
The best part came at the nine-minute mark, when he told the crowd:
"We're going to be hardcore. HARD-core. HARDCORE! We're going to get better everyday. We're going to be tenacious. Something knocks us down and we're going to get back and keep coming and coming and coming and coming. Did you watch these guys? That was hardcore! Hardcore baby! Nothing gets in our way, BOOM! Keep coming. HARD-core. The HARDCORE Clippers, that's us."
Speaking of hardcore ... For the record, Ballmer bought the Clippers for a $2 billion (four times the record sale for an NBA team, according to the LA Times).