In the latest installment of "Diversifying the Portfolio," both Lily Allen and MF Doom have decided to team up with Nike to create custom kicks.

MF Doom's Nike shoes.

Allen, the British ska-pop singer who is currently touring Europe before a string of dates in the US in September, helped the shoe giant design the "Lily Allen Air Max 90," according to a Nike press release. "The shoe, which will only be available via various exclusive US promotions this summer, will be red, white, and blue with stars on the laces," Nike said.

Fans of the enigmatic Doom can already find his Nike Skateboarding high-tops on eBay--for a pricey $250, no less. The rapper is set to play a series of dates this summer, kicking off with the Rock the Bells tour on July 29 at Randall's Island in New York City.

Lily Allen US tour dates:

9-6 San Diego, CA - House of Blues
9-7 Las Vegas, NV - The Joint @ Hard Rock Hotel
9-10 Anaheim, CA - House of Blues
9-12 San Francisco, CA - Warfield Theatre
9-14 Portland, OR - Crystal Ballroom
9-15 Seattle, WA - Paramount Theatre

MF Doom live dates:

7-29 New York, NY - Randall's Island (Rock the Bells)

8-8 San Diego, CA - TBA

8-10 Pomona, CA - Glasshouse

8-11 San Bernardino, CA - Glen Helen Hyundai Pavilion (Rock the Bells)

8-12 Los Angeles, CA - El Rey

8-15 San Francisco, CA - Independent

8-16 San Francisco, CA - Independent

8-18 San Francisco, CA - McCovey Cove Parking Lot (Rock the Bells)

8-25 Minneapolis, MN - Metrodome Parking Lot (Rock the Bells)

8-26 Chicago, IL - Charter One Pavilion (Rock the Bells)

8-28 Ann Arbor, MI - Blind Pig

8-29 Detroit, MI - DTE Energy Music Center (Rock the Bells)