Suki Waterhouse had a big surprise for Coachella fans … and, it wasn’t a guest performer — she announced the sex of her baby onstage.

The singer-songwriter hit the Gobi stage at the vaunted music festival … playing a few songs before taking a break to speak directly to her audience.

Suki starts by mentioning all of the talented women playing at Coachella … rattling off names like Sabrina Carpenter and Lana Del Rey — before casually dropping she’s been carrying around her own “amazing lady.”

At this point, fans started to shriek — clearly enthusiastic about Waterhouse’s gender reveal — and, her boo Robert Pattinson was also on-hand for her to make the announcement … holding hands with Suki before her show while on the festival grounds.

Robert and Suki announced the birth of their baby last week and shared a first look with fans where they covered up her face just last week.

Tons of their celeb fans and friends congratulated the couple in the comments of Suki’s Instagram post … bringing a culmination to a highly publicized pregnancy.

Remember, Suki took the stage in Mexico in November and said she’d worn a sparkly dress to distract from something else she had going on — pointing to her baby bump.

It ended months of speculation about a possible child for the couple who started dating way back in 2018 … and later moved in together in London while RP filmed “The Batman.”

The couple’s stayed out of the limelight for the most part … though, this baby news seems to have them so excited they just can’t wait to share it with the fans.