Barbadian singer/actress Rihanna has revealed she will not join American singer/songwriter Taylor Swift on stage during her 1989 World Tour. The Red hitmaker has had celebrities including Lena Dunham, Lisa Kudrow and Serena Williams to appear at her concert.

"I don't think I would [join Taylor on stage]," Rihanna said in an interview with NME. "I just don't think it makes sense. I don't think our brands are the same: I don't think they match, I don't think our audiences are the same. In my mind, she's a role model; I'm not."

It was previously reported that Rihanna planned to release a song about Swift for mocking her close friend, American singer/songwriter Katy Perry. The 25-year-old singer's latest hit song, Bad Blood, is widely believed to be directed at Perry.

Swift and Perry, who have previously dated John Mayer, were best friends for a long time before things turned sour. In an interview with Rolling Stone magazine, Calvin Harris' girlfriend had revealed that the song Bad Blood from her latest album, 1989, is about a former friend. The two apparently fought over backup dancers.

Perry took a dig at Swift during the 2015 Super Bowl half-time show, which took place on 1 February at the University of Phoenix Stadium in Arizona. During the performance, the 30-year-old singer's backup dancers wore high-waist polka-dot bikinis, something similar to what Swift had worn while holidaying with Conor Kennedy on the shores of Hyannis Port, Massachusetts in 2012.

Meanwhile, Rihanna revealed she has been busy working on her highly anticipated new album, R8. "It's not done!" she said. "To me it's never done until it's done. Until the final moment."

"No matter what I post online, within three comments there's somebody saying, 'Where is 'R8'?' I could post anything. Nothing else matters. They don't care about anything but that. But it makes me excited, because I can't wait to give them something great," she added.