"I’m like, ‘You got to send me some beats!’ So we chopped it up," the Houston rapper said.
The Bravo star impressed the judges all along before getting her leash yanked on Wednesday night's episode.
The actor apologized after he made a series of homophobic comments on the ITV show.
The popular book series is celebrating its 20th anniversary.
The star has won three American Music Awards and has performed on the show more than 10 times.
"She's been such a cool artist to me from the beginning," the talk-show host said of the guitarist.
After LISA made her mark as Mook in the HBO show's third season, these musicians could bring additional intrigue to the table in season 4.
The one-night-only event will also premiere unseen bonus content.
The clip comes shortly after season three's tense finale.
The show's creator and writer told Howard Stern on Tuesday (April 8) that he didn't remember any major disagreements with Cristóbal Tapia de Veer.
