Jennifer Lopez has a new man in her life and he sounds a whole lot like an old one.

The American Idol judge is dating dancer Casper Smart, reports Us.

The two have been very quietly seeing each other the last several weeks.

Smart appeared in the movie Step Up 3D and an episode of Glee. He danced with Beyonce during her 2010 Grammy Awards number, and is now backing up JLo on tour, tweeting about being one of the "dope JLo Dancers."

Lopez was married to dancer Cris Judd from September, 2001 to June, 2002.

She then dated and was engaged to Ben Affleck, but he got cold feet on the eve of their wedding, and she moved on to Marc Anthony.

Jennifer Lopez has come a long way since her days as a Fly Girl on the television show In Living Color.  The smoking hot American Idol judge, Grammy Award winning singer and outstanding actress turns 42 on Sunday. It's hard to believe, considering she looks better than ever!

In honor of her special day, RadarOnline.com is bringing you photos of the newly single star, from the beginning of her life to the present day.

PHOTOS: Jennifer Lopez's Star Style Evolution

Jennifer established herself as an actress on the rise, when she scored the lead in the biopic Selena. Her portrayal as the murdered Latina pop star won over the critics, and she immediately became a household name. As her movie roles got bigger and bigger, so did Jennifer's aspirations.  In 1999, she released her debut album, On the 6, and thanks to such hits as If You Had My Love and Love Don't Cost a Thing, she became a pop sensation overnight, and J. Lo was born.

PHOTOS: Jennifer Gets Gorgeous In Gianfronco Ferre For Back-Up Plan Premiere

J.Lo, who had found love with hip-hop mogul Sean Combs in the late 1990s, after splitting with hubby Ojani Noa (a marriage, which would haunt her for years to come) flaunted her famous curves in sexy and revealing getup.  Her most famous look to date?  The dramatically low-cut, green Versace gown, which she wore to the 1999 Grammy Awards. The dress spawned a media sensation, and still hasn't been forgotten over a decade later.

After splitting with Combs, and another failed marriage to backup dancer Cris Judd, J. Lo turned into Jenny From The Block, falling in love with Hollywood heartthrob Ben Affleck. The two became Hollywood's golden couple, and Jen transformed into a glam goddess on the red carpet, wearing elaborate gowns and fur, while showing off her enormous $1.2 million dollar pink diamond engagement ring from Ben.

PHOTOS: Jennifer's Bikini Body

After ending the engagement, Jennifer ended up back in the arms of her former flame, Marc Anthony, marrying him in 2004. The couple welcomed twins Max and Emme in 2008.

Since her last birthday, Jen's life has changed dramatically.  After landing herself a spot on the judges panel of American Idol, the luscious Latina shocked the world when she and Marc announced their marriage was over.

What was Jen's best look every?  Find out by clicking here.

RELATED STORIES:

PHOTOS: J.Lo Celebrates Release Of Love? At Hollywood Hard Rock

Jennifer Lopez Video Hunk Being Sued For Sexual Battery

Jennifer Lopez Video Hunk Responds To Sexual Battery Charges: Demands Jury Trial