Stop discrediting TLC aka the second bestselling girl group of all time with songs like 'Waterfalls' and 'Unpretty' that will remain as classics in the R&B time vault forever. The act that influenced some of the biggest stars who came after them. The girl group who shone the brightest in an era of African American R&B girl groups. Why? Because they were the shit. TLC are veterans of R&B. I was born in the early 90s but know their impact.