'Keeping up with the Kardashian' star and style icon Kylie Jenner knows how to throw a party. The reality star loves to go big on birthday celebrations and had thrown her daughter Stormi an 'Astroworld'-themed birthday party in February this year.

On Saturday, just a day after throwing her beau Travis Scott an 'Avengers'-themed birthday party — even though Scott doesn't turn 28 until April 30 — she has yet another surprise in store for him. 

The 21-year-old reality star bought a huge billboard in Los Angeles to wish Scott a happy birthday. The birthday wish included a photo of herself and Stormi with the caption, "Happy birthday, Daddy. Love, Mommy & Stormi xo". The black-and-white billboard was at the intersection of Santa Monica Blvd and La Cienega in West Hollywood. 

On Friday, Kylie threw Scott an 'Avengers'-themed birthday bash. She sported a Captain Marvel ensemble looking like a complete charm. By her side, Scott posed in an Iron Man ensemble.

Kylie had previously thrown daughter Stormi her very first birthday on February 10, 2019. Themed around Scott's futuristic 'Astroworld' album, Kylie's theme for Stormi's birthday party was StormiWorld.