The rumors were true — JoJo Siwa is single again. The Dance Moms alum, 18, and girlfriend Kylie Prew have broken up after less than a year of dating, Us Weekly confirmed on Wednesday, Oct. 20. “JoJo and Kylie did break up,” a source told the outlet, adding that some Dancing With the Stars cast “are aware about the breakup.” The source said that the break up occurred two weeks ago.