Complex sentence: In May 2013, Clara became an online overnight sensation after throwing a ceremonial first pitch in a professional baseball game dressed in form-fitting leggings, and has since been hailed as an up-and-coming star and sex symbol.
Split into simpler sentences: In May 2013, Clara became an overnight sensation online after throwing a ceremonial first pitch in a professional baseball game dressed in form-fitting leggings. She has since been hailed as an up-and-coming star and a sex symbol.