Hilary Duff looked incredible in a black bikini while shooting a music video on the beach in Malibu on Friday, July 11 Credit: AKM-GSI/FameFlynet

Hello, Lizzie McGuire!

In a very rare moment, Hilary Duff showed off her incredible bikini body while filming a music video on the beach in Malibu on Friday, July 11.

The actress-singer, 26, rocked a cleavage-baring black two-piece and accessorized with several silver necklaces. She kept her makeup minimal, and wore her tousled shoulder-length locks down.

Duff was joined by estranged husband Mike Comrie and the couple's 2-year-old tot Luca. Amicable since their split in January, at one point the former NHL player relaxed on a blanket during the shoot while Duff held onto their son's hand.

Duff signed a new record deal in March and has already been working hard with a Grammy-nominated superstar—Ed Sheeran.

"I feel like her record is not what they will expect," the British crooner told MTV last month. "Obviously she comes from Lizzie McGuire' and that pop world, but she's more grown up now, so it's more of an adult alternative acoustic sound."