08/05/2012 07:15 BST

Rihanna Sends Adele A Boob Shaped Birthday Cake (And A Topless Photo, Natch)

It must be a wee bit difficult picking out a birthday gift when your pal just happens to be one of the richest popstars in the world.

Not if your name is Rihanna though, who decided to send birthday girl Adele a boob-shaped cake, along with a topless photo of herself covering her breasts with her hands.

Of course she did.

According to The Sun, RiRi had the treat delivered to Adele's north London home with an accompanying message saying: “To Adele Laurie Blue Adkins, the baddest b*tch around. Have the best freaking Bday. Cake cake cake xxx”

She also tweeted her birthday wishes to the singer, writing: "Happy Birthday to my lover, Adele."

Adele celebrated her 24th birthday over the weekend with her boyfriend Simon Konecki, where they were joined by pals for a boozy bash on Saturday night.