Less than 24 hours remain until Katy Perry performs one of the most coveted slots in music history, taking to the field for her halftime show at the 2015 Super Bowl.
Credit: Christie Goodwin
With Lenny Kravitz confirmed to join her for a collaboration, she's also told of how one special female guest will be getting up to sing alongside her at one point, an artist she describes as a "throwback" - so just who would we like to see?
Beyoncé
Bey could be called a throwback in the sense that she's performed at the Super Bowl in her own halftime show! How fantastic would it be to see two such powerful pop presences at the same time?
Cher
A true pop throwback, Cher is one of the original industry females and the woman that many credit for bringing autotuned vocals into mainstream music. She's been at the Super Bowl before, giving her own unique rendition of the National Anthem in 1999.
Britney Spears
Katy let us know that the first chord we hear from the guest's song is going to make our "face melt" and "jaws drop" - could Britney's 'It's Britney, Bitch" make it to the Super Bowl? She's been there before with Aerosmith and N*Sync back in 2001 - so it would certainly be a throwback!
Janet Jackson
Rumour has it Janet has a secret album in the works, but will the Jackson offspring want to make an appearance at the event which dented her career over a decade ago? We hope so - an appearance from this lady would send the crowd's excitement soaring!
Missy Elliott
After featuring on Katy Perry's 'Last Friday Night (T.G.I.F.)', this is a woman who's looking more and more likely by the second. She's been in the business for some time and could more than hold her own on perhaps the grandest singing platform of the year.
Who would you like to see join Katy later tonight at the Super Bowl? Let us know below!