Britney Spears will help host the upcoming iHeart Radio Music Festival event.

The two-day shindig will take place over September 20 and September 21 as a host of stars such as Katy Perry and Queen + Adam Lambert take to the stage in Las Vegas.

Spears will help to host the Saturday (September 20) show, which is taking place at the MGM Grand.

The singer added on Twitter: "PS - @iHeartRadio Fest, I will see u Saturday! Looks like I'll be spending a lot of time in Vegas this week... ;)."

Her tweet seems to back up speculation that she will perform live from a Las Vegas desert today (September 17) as she announces a possible residency in the city.