The Bajan superstar turned 26 years old on Thursday (20 February), but began partying days before when she arrived at a luxurious cabin in Colorado.
As well as posing for sexy snaps in front of the fireplace, drinking shots and bowling, Rihanna has also been playing in the snow with her pals on a rubber ring and matching her winter gear with her make-up.
But of course, the celebrations were far from over and carried on well into yesterday evening with even more cake and crazy antics.
And although the weather was freezing, RiRi still decided to get her bikini out!
The songstress donned a bright white two-piece and posed for a set of photos in the ice cold snow, while sporting a pair of ski goggles and draping a large jacket over her shoulder.
We can't imagine that kept her very warm!
Her various tattoos were on full display too, including the latest henna-inspired artwork on her hand.
Perhaps feeling the chill a bit, Rihanna then jumped into a hot tub and posed for another sultry picture. Is that a cup of hot chocolate we can see beside her?!
Back in her cabin, RiRi changed into a tiny orange boob tube, a pair of jeans and a tiara and indulged in some champagne and a couple of cakes.
Holding up a tasty looking chocolate cake, the chart-topper wrote "Midnight surprise #cabinlife #feb20", while another snap showed her admiring a giant cookie cake with 'She x 26' iced on top.
No doubt Rihanna has been flooded with birthday messages, but it seems the most cherished one she received was from Cedella Marley, daughter of Jamican legend Bob Marley.
Retweeting Cedella's message onto her Twitter page yesterday, RiRi added: "ONE LOVE ALWAYS !!!"
Check out more pictures from Rihanna's birthday celebrations in Aspen in the gallery below.
Copyright: Instagram badgalriri
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