Harry Styles showed up to support his old One Direction bandmate Niall Horan at his concert in  Manchester, England on Tuesday night (August 27). And the pop superstar was even seen dancing to Horan’s cover of the 2014 1D classic, “Stockholm Syndrome,” with Styles caught singing along to the song’s catchy chorus as he waved his hands in the air. Horan has frequently been performing “Stockholm Syndrome” solo on his The Show: Live on Tour trek. The track was originally featured on Four, One Direction’s penultimate album from 2014, with the song reaching No. 99 on the Billboard Hot 100, while the LP topped the Billboard 200 chart. In other clips of Styles at the show, the star is seen dancing and talking with other fans in the crowd, while also grooving along to “Heartbreak Weather” from Horan’s 2020 solo album of the same name, before he eventually left the venue during “Slow Hands.” (Billboard)