P. Diddy is to coach 'American Idol' contestants on their "swagger".

The hip-hop mogul is to perform his latest single 'Coming Home' with his grouP Diddy-Dirty Money on the TV talent search show next month and will also style the aspiring singers through his Sean John clothing collection.

He said: "I'm helping the contestants with their styles. I'm helping to dress them with Sean John.

"I'm bringing a celebrity stylist to help us this week. We're going try to get them to have that superstar shine and swagger that I try to exude on a daily basis.

"I'm going to hit 'em with some musical tips, some inspiration, some motivation, and then I'm gonna show 'em how to do it. I'm going to hit that stage after I show 'em how to have that swagger."

This season has seen both Aerosmith rocker Steven Tyler and Jennifer Lopez - who Diddy dated for almost three years until 2001 - join the judging panel in place of Simon Cowell and Ellen Degeneres and the rapper is impressed with how well his former lover is doing on the show.

He told 'Access Hollywood': "First of all she's just looking so good. You've got to give it to her for having twins and to be doing it how she's doing it. I'm so proud of her.

"The way Jennifer handled coming in after Simon, and even myself from 'Making the Band,' and the way we were hard coaches - she's been a compassionate person. She has made me cry, like, twice, and she's looked good doing it. And she has made sense so, you know, I'm proud of her.

"She's a nice person, so when you're super nice, your emotions get the best of you. It's good though - it's good to see that change in the competitive shows. I think she's very refreshing."

Catch Diddy in all of his "swagger" glory when he appears on "American Idol" on April 18 on FOX.