Jennifer Lopez has broken her silence after her reported spilt from boyfriend Beau “Casper” Smart.

The singer posted a photo of herself on Instagram next to a piece of street art with the words “Protect Yo Heart”.

It comes after People magazine reported that she and Casper have officially called time on their relationship after five years together.

@egt239 i think this is what you meant to post… Ha. #protectyourheart #shadesofblue #setlife

A photo posted by Jennifer Lopez (@jlo) on

The graffiti also included the shape of a heart with spikes coming out of it.

The picture was taken on the set of Jennifer’s TV police drama, Shades of Blue, in New York City.

Jennifer, 47, began dating her former back-up dancer Casper, 29, in 2011 and the pair had a brief separation in 2014.

Casper and Jen at a Golden Globes after-party earlier this year (Matt Sayles/AP)

A source told People that the split “wasn’t anything dramatic” and they remain on good terms.

“They will remain friends and they see each other, but they are not together,” the source said. “It was very amiable.”

A spokeswoman for J-Lo declined to comment.

J-Lo with Casper in December 2013 (Alex J Berliner/AP)

Jennifer has been married three times, most recently to singer Marc Anthony, with whom she has eight-year-old twins.

She was previously wed to dancer Cris Judd from 2001 to 2003 and to waiter Ojani Noa from 1997 to 1998.

J-Lo also had a high-profile relationship with rapper Sean Combs and she was engaged to actor Ben Affleck before they cancelled their wedding just before the ceremony in 2003.