East Coast meets West Coast in the new video for "Zoom," a collaboration between rappers LL Cool J and Dr. Dre that will be included on the upcoming soundtrack for Warren Beatty's new film, "Bulworth.

The video, which premiered Tuesday on "MTV Live," features the duo's take on a song originally recorded by Dre and Snoop Doggy Dogg several months ago. But after contract problems emerged between Dre and Snoop, LL stepped in to overdub Snoop's vocals.

The two rap legends spoke to MTV News recently about the surprisingly effortless genesis behind "Zoom.

When [LL] came to the studio," Dre explained, "like I said before, we had no idea we was getting ready to do this song, you know what I'm saying?

Yeah, that's true," laughed LL.

It was your birthday right?" Dre asked LL, "And then it just came through.

It just happened ..." LL said.

Grabbed a pen," interjected Dre.

[article id="1443096"]"The beat was crazy and

y'know,"[/article] LL continued. [article id="1443096"]"I was feeling it. I enjoy working with [Dre] and we ended up coming up with that crazy singing style. Just kept it like line-for-line, vibing off a line. I would spit it in his ear and he has, 'Yeah, that's cool,' and we kept working on it. The next thing you knew --" [1.1MB Quicktime][/article]

Boom," Dre said.

He mixed the song," LL concluded, "like 25 times to make sure it was right, and it came out right.

The soundtrack to "Bulworth" arrived in stores this week.