Jennifer Lopez's Twins Hold Hands During a Family Day Out in Los Angeles

Superstar singer's five-year-old son and daughter took a trip to the Griffith Observatory in Los Angeles this week

Can Jennifer Lopez's kids get any more adorable? 

The Back-up Plan star's little ones took a trip to the Griffith Observatory in Los Angeles with their nanny Thursday, holding hands as they walked along the grounds. 

Looking like a mini J.Lo and Marc Anthony, Max and Emme, 5, enjoyed a sibling day out without their mom and dad, according to X17.com.

Speaking of Lopez, the busy triple-threat star is in the midst of another project, producing ABC Family's upcoming lesbian drama The Fosters.

Jake T. Austin, who stars on the show, told E! News exclusively that Lopez will also be working in front of the camera, making an appearance on The Fosters at some point.