Overnight rap star Cardi B knows it’s all about August 26. The hip-hop rookie is heading to Las Vegas to celebrate festivities surrounding the Conor McGregor and Floyd Mayweather Jr. fight.

Cardi went to Instagram Thursday (August 24) to announce an event she’s hosting in Las Vegas on fight night.

Fellow New York rapper Nas is also heading to Las Vegas for his own event.

Pop star Demi Lovato is expected to perform the national anthem prior to the fight happening.

Demi Lovato has signed on to sing the national anthem at the Mayweather vs. McGregor fight on August 26 … Showtime has confirmed. Lovato is a HUUUUGE fight fan. She’s not only a regular at UFC fights, but also trains MMA at Jay Glazer’s gym in Los Angeles. She also just released her new single, “Sorry Not Sorry,” last month — so the timing is great for her. (TMZ)

Music mogul Diddy and actor Mark Wahlberg have both promoted the upcoming bout.