Madonna and Justin Perform Secret Gig

 Image by wenn.com

Madonna gave fans a special treat yesterday when she performed a free thank you concert to celebrate the release of her album 'Hard Candy' at the Roseland Ballroom in New York City.

As if a special performance by Madonna wasn't enough, Madge had Justin Timberlake join her onstage to perform '4 Minutes to Save the World.'

After thanking Timberlake for joining her, Madonna told the crowd she felt "like the luckiest girl in the world to be able to make a record with him, Timbaland, Pharrell, and Kanye West.

"And even though I've made what seems like 100 records, every time I put one out it's like the first time, and the best time."