Jennifer Lopez has rubbished rumours that she has got engaged to her new man.

The singer, actress and American Idol host was thought to be set to wed dancer Casper Smart after she was snapped wearing what looked like an engagement ring, but J-Lo took to her website to end the speculation.

Quoting a line from her song Jenny From The Block, she wrote: "Don't be fooled by the rocks that I got."

The star added: "No engagement!"

Jennifer, 42, and Casper, 24, have been dating for several months, but earlier this year the star admitted during a TV interview that she wasn't sure whether she would marry again after three trips down the aisle.

Jen was married to waiter Ojani Noa from 1997 to 1998 and to dancer Cris Judd from 2001 until their divorce in 2003. She exchanged vows with singing star Marc Anthony in 2004, but last year the couple, who have twins Max and Emme together, announced they were splitting after seven years.