Here's an excerpt from an article posted here.

Her upcoming album promises to venture deeper into uncharted creative territory, via hip-hop-savvy, club-thumping songs.

"Hard Candy" is "one of the best albums in years," says the Neptunes' Pharrell Williams, who collaborated with Madonna on a couple of new tracks.

Other contributors to the project include Timbaland and Justin Timberlake, who is set to induct Madonna into the Rock Hall. (For unspecified reasons, she won't perform at the ceremony, leaving fellow Michigan natives Iggy Pop and the Stooges to do a number or two in her place.)

Madonna "worked me to death," Williams says. "But you know what? I'm glad I was pushed, because it's some of my best work."

Source: Cleveland