Sugababe Amelle Berrabah has been arrested after a car was damaged in a Hampshire town.
Police said a 23-year-old woman had been arrested on suspicion of causing criminal damage after an incident in Aldershot on 9 January.
Amelle has been in the group since 2005, when she replaced Mutya Buena.
Last month, her boyfriend Freddie Fuller was hurt in a knife attack in Aldershot and Amelle has been helping him get through his recovery.
Sugababes have been really successful with several different line-ups.
In October, the group took the number one spots in both the singles and album charts with About You Now and Change.
Amelle has been released after questioning, and has been told to return to Aldershot police station on 21 February.