During BET's keynote performance this morning, the rap group D4L came out on stage to tell the wireless industry just what they were looking for in mobile. D4L made history last year when it sold more ringtones than any other band based on its hit "Laffy Taffy."

Debra Lee, BET's chairman and CEO, asked the three-member group, what makes's a good ringtone.

The answer, which drew laughs from the crowd: "A good phone."

When asked what would help sell more ringtones, they said making it easier to buy them -- afterall "a lot of people I know don't have a college education."

The ringtones they currently had on their phones included D4L hits but also tunes from Busta Rhymes and Michael Jackson's "Thriller."

Before exiting the stage, the entrepreneurial trio, took the opportunity to offer their talents to the crowd.

"Like I said, my schedule is open," said one member.