Selena Gomez and Niall Horan dating rumors are rising on news that the couple were spotted leaving the same party on Sunday. Selena Gomez and Niall Horan have yet to confirm their relationship status.

Justin Bieber's ex-girlfriend went to an after she put in an appearance at rumored boyfriend's band One Direction's X Factor UK afterparty in London. Selena hung out backstage after One Direction performed during the finale, according to TMZ. According to E! News, the pair kept close and Selena even mingled with a couple of Niall's friends.

One Direction gave their last performance as a group on the reality competition show before they went on an extended hiatus. This summer, the group announced their decision to take a hiatus and will not record any new music together for at least a year.

Gomez and Horan, 22, were reportedly spotted kissing at Jenna Dewan-Tatum's birthday party in Los Angeles earlier this month and were later seen by fans at the Santa Monica Pier in Los Angeles, riding a rollercoaster together and playing at game booths.

One Direction ended where they began, on The X Factor UK. The boy band sang two of their recent hits on the series' season finale, which was held at the city's Wembley stadium.

Selena Gomez swears she's not dating Niall Horan, but she recently posted a photo to social media saying that she has "a serious thing" for "Mullingar guys." Nial is a Native Mullingar.

"Oh my god! No," the singer said when asked if she was dating Horan. "I love him, I always have. He's amazing."

Gomez announced  that she will embark on her worldwide "Revival Tour" in 2016. The first leg will find Gomez traveling to 41 cities across the United States and Canada.

"I am ready to get back on the road and see my fans in person!" said Gomez.  "This album marks a new and very important chapter in my life.  I cannot wait to get on stage and perform this new material."

"The Revival Tour" will follow the October 9th release of Selena's new album "Revival" via Interscope Records.   The lead single "Good For You" recently topped the Top 40 Radio Charts for three consecutive weeks.  Gomez, who has sold over 22 million singles worldwide, embarks on her first tour since the sold out 2013 "Stars Dance Tour."

The first single from Revival, "Good For You" featuring A$AP Rocky, is Gomez's biggest hit to date. It is her fastest-ever platinum seller as well as her highest charting single on the Billboard Hot 100. "Good For You" spent three consecutive weeks at No. 1 at Top 40 radio.

Total worldwide sales of Gomez's albums stand at nearly 7 million units and single sales are over 22 million worldwide.