So many Beyoncé songs have changed the world — and one in particular changed Rihanna’s world. When the “SOS” singer was still part of a girl group, she auditioned for a producer by singing a song by ...

Rihanna and ABBA have sung it. SZA even has a whole album named after it. We use it in our texts and everyday slang. So what does "SOS" actually mean? Here's everything you need to know about the ...