Austin Mahone, the up-and-coming teen singer who’s been dubbed the next Justin Bieber, has been forced to postpone his first headling tour after falling ill.

Mahone, 17, was admitted to the hospital on Thursday morning, reported USA Today. The "What About Love" singer fell ill earlier in the week, and had already delayed his scheduled tour stops in Miami and Orlando. He took to Twitter on Tuesday, to inform his fans of the unfortunate news: