Rihanna shows Santa her naughty side as she straddles his face

Rihanna shared an Instagram image on Saturday where she is seen straddling a life-size doll of Santa Claus

She did a little more than just kiss Santa Claus.

Rihanna shared a photo on Instagram Saturday of her sitting on top of a life-size Santa Claus' face.

The cheeky singer captioned the shot: 'We tried to convince Santa that being a naughty girl isn't so bad after all!!....making the list or nah?'

Melissa snapped RiRi while still in bed

The pair clearly wasted no time getting ready for the holidays.

The day before Melissa posted an image of the Umbrella singer laying in bed while holding out a phone.

In the provocative shot, the Diamonds singer appears to be topless with only the blankets covering her up.

She x She ... always great to see my Lil Kitty cat!!! #Perry,' Rihanna captioned this image

Rihanna also spent time on Friday with Katy perry, sharing photos of the two of them making faces at the camera.

'She x She ... always great to see my Lil Kitty cat!!! #Perry,' RiRi wrote along with an image of her and Katy sitting next to each other.

But @badgalriri isn't all fun and games.

The star received the Icon award from her doting mother, Monica Briathwaite

She recently revealed that she donated more than $100,000 (£61,000) to those affected in the Philippines by Typhoon Haiyan.

In a statement, Rihanna said: 'Emergencies make headlines, but the recovery continues long after the news cameras leave. Having been a fan and supporter of UNICEF's work over the years, I am honored to join them in helping children who have been impacted by Typhoon Haiyan.

'More than five million kids in the Philippines need our help. UNICEF is there for them today, and for the long road ahead, and so am I.'

The news came on the heels of the Stay singer's American Music Awards appearance where she was honoured with the Icon Award.

'It's amazing how you always manage to take good from all your experiences,' said her mother Monica Braithwaite, who presented RiRi with the award. 'I'm so blessed to be a part of this historic moment.

'I just want to say how proud I am to present to you the first-ever AMA Icon Award.'