Campbell steps up to the plate as a guest star on Ugly Betty in Beverly Hills. Plus: Madonna & Justin, Jessica Simpson, Pink and more

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'MINUTE' AID

It may be Madonna's night – but she gets a little help from fellow pop star Justin Timberlake, who joined the singer onstage at New York's Roseland Ballroom to perform their pop anthem "4 Minutes" on Wednesday. To celebrate her new album Hard Candy, Madonna performed an intimate (and free!) six-song concert for her fans.

Find out about Madonna's Dolce & Gabbana stage costume on Off the Rack.