Jennifer Lopez Wows in Skin-Tight Leather Pants

Credit: Fame Pictures

Jenny from the block is back!

Jennifer Lopez -- who announced her split from Marc Anthony July 15 -- showed off her famous curves in sexy zippered black leather pants by Balmain and Christian Louboutin Pigalle Spikes studded pumps on the set of her video "Papi" in Los Angeles on Tuesday.

Between takes the 42-year-old superstar held her three-year-old daughter Emme (twin brother Max was not at the shoot).

The day before she wore a midriff-baring ivory top and matching shorts while filming some daring scenes including crowd surfing, flipping upside down in mid-air and riding on the shoulders of a hunky guy.

J.Lo kept her fans updated during the shoot, tweeting: "1st day of my new video #staytuned"

In addition to working on her music video and filming What To Expect When You're Expecting, the singer-actress will be back as a judge for American Idol next season.