They’re not 25 anymore, but that won’t stop Mariah Carey from prancing in short-shorts, Janet Jackson from out-dancing anyone half her age, Mary J. Blige from coining new slang, — hateration, anyone? — or your Madgesty from, well, getting too up and personal with JT’s butt.

These ladies still have to compete against each other and find ways to stay relevant. Here’s how they do it.

Mariah Carey — new album E=Mc2 is now out.
She might not be Einstein, but whatever formula Mariah Carey’s using, works. She’s the biggest selling female artist of all time, having just surpassed Elvis Presley for the most No. 1 songs on the Billboard singles chart.

Janet Jackson — new album Discipline is now out.
Jackson and Carey are in an inadvertent rivalry: Jackson’s last album, 20 Y.O., was partially produced by boyfriend Jermaine Dupri, who at the same time also produced Carey’s comeback album, The Emancipation of Mimi. Only, Mariah’s CD won three Grammys and was the biggest-selling album of the year.

Mary J. Blige — Heart Of The City tour with Jay-Z began March 22nd.
Blige used to be the type of girl who would pop you in the face for looking at her the wrong way. Now she’s married, found God, ditched partying for family bonding and prefers to sing about love and empowering women.

Madonna — new album Hard Candy drops April 29th.
Madge’s going hip-hop, teaming up with Justin Timberlake, Timberland, Pharrell Williams, and Nate Danja Hills (With this tour de force gang in her back pocket, Madonna is poised to be the biggest diva success story of 08.