Harry Styles鈥 One Direction bandmates are worried about his romance with Taylor Swift.

Niall Horan, Liam Payne, Louis Tomlinson and Zayn Malik think Harry, 18, is rushing into a relationship with Taylor, 22, too quickly and are also fearful she will write a damaging song about him if it ends badly.

A source told RadarOnline: 鈥淗arry鈥檚 public romancing of Taylor has got the other lads all riled up.

鈥淲ith Taylor鈥檚 reputation for writing break-up songs about her exes, they think Harry could find himself in a spot of bother if it doesn鈥檛 work out and his actions are setting them all up for a fall.

鈥淭hey also think it is moving too quickly and both have busy schedules, so it鈥檚 a difficult time for either one of them to commit.鈥

The 鈥榃hat Makes You Beautiful鈥 singers are also worried Harry鈥檚 relationship could affect their fan base as he is known as the heartthrob of the group.

The insider added: 鈥淗arry鈥檚 especially loved by the band's female fans and there is a feeling that by being so open about his relationship with Taylor he will only upset them.

鈥淭he boys are praying that when it does come down to it, he ends things amicably with her. Otherwise, they fear there will be hell to pay."