Back in 2015, dating rumours surrounded the pair until Sel was asked about the union by Entertainment Tonight and responded with:
"Oh my god! No," she said, laughing.
"I love him, I always have. He's amazing."
Now, in a recent interview with SiriusXM, Niall revealed that Sel was one of his first celeb crushes.
"Selena Gomez or Mary-Kate and Ashley," he said.
"Mary-Kate and Ashley, their show was great...I had all the tapes. They're twins. You know, there's two of them and they're both great looking. And Selena's just really cute."
One thing can be said for the blonde boy bander, he is one class act!