Get better soon, Niall! On Monday (May 4), Niall Horan opened up about his recent silence on social media, explaining he's come down with an unspecified illness. "Sorry been quiet guys, haven’t been feeling very well last few days. .
I’ll be back soon x," the former One Direction-er tweeted. While Horan has been under the weather, his former 1D bandmates -- Louis Tomlinson, Liam Payne and Harry Styles -- have been vocal about reuniting for the 10-year anniversary of the boy band's formation of the U.K.
version of The X Factor. (While fifth member Zayn -- whose longtime love Gigi Hadid confirmed last week she's expecting a child with the signer -- has remained mum on the potential reunion, his former bandmates have all followed him on social