Justin Bieber heads to Selena Gomez's 21st birthday party in his cheetah print sports car

Justin Bieber heated up speculation that he and Selena Gomez are back together as her headed to her 21st birthday celebrations on Saturday night.
The popstar rolled up in his leopard print Audi sports car with a few of his friends, where he met good pal Jaden Smith.
But as the party came to an end, Justin, 19, reportedly left his feline ride behind and allegedly jumped in a car with the birthday girl.

Guest of honour? Justin Bieber arrives with friends to Selena Gomez's 21st birthday party

Bieber wore a green varsity jacket with black jeans, T-shirt and white high-top trainers to the party at The Revolve Beach House in Malibu.
Jaden, 15, also went for a black look, wearing a leather looking jacket and backwards baseball cap as he joked around outside the venue.
And it looked like he had made a new friend in fellow actor Dylan O'Brien, the 21-year old who stars in Teen Wolf and most recently appeared in The Internship with Owen Wilson and Vince Vaughn.

Reconciled? Justin's appearance heats up speculation that he and Selena are back together

Reinforcements: Bieber's friend Jaden also attended with Teen Wolf star Dylan O'Brien

Dylan was far more laid back in a plaid shirt over a green T-shirt and cream chinos, but it seems Jaden was hoping to make an impression on the female guests, as she tweeted Saturday night that 'Some Girls Are To Pretty'.
Coincidentally or not, Justin arrived to the party just after Selena's parents had made their exit, with the Boyfriend singer and his on/off girlfriend allegedly leaving together at around 2am.
Earlier in the day the former Disney star had enjoyed lunch with her mother Mandy and stepdad Brian Teefey at Kabuki in Encino.

Cheetah boy: Justin rolled up in custom-designed Audio sports car but apparently left it behind to reportedly catch a ride with Selena

Good timing: Bieber reportedly arrived to The Revolve Beach House after Selena's parents had left

Where's the driver: A friend of Justin's waits outside his car after all the other vehicles have gone

But his invitation to the birthday celebrations was rumoured to not have been sent, following reports that Justin had made no effort to give Selena a present or any sort of gesture to mark her special day.
According to The Hollywood Life, and insider said 'he did nothing' in a way of a gift for the Spring Breakers star.
But even if Justin had got Selena a present or not, it wouldn't have compared to the one given to her by her fans who helped her new record top the charts.
Gomez tweeted on Saturday: 'I just want to say thank you all for an amazing birthday week. The success of this album has been the greatest gift!' 

Selena Gomez bares her midriff as she celebrates her 21st...

Best day: Before her party, Selena enjoyed luch with her mother and step-father in Encino, California

Chart success: Selena said the best gift she recieved was the success of her latest album

Cousin It? With the wind blowing her hair, Selena could have been auditioning for a role in The Addams Family