Tiffany Hwang was a member of Girls' Generation.
After four years of training , Tiffany debuted as a member of girl group Girls ' Generation -LRB- and later its subgroup TTS -RRB- in August 2007 , who went on to be one of the best-selling artists in South Korea and one of South Korea 's most popular girl groups worldwide .	TTS	Girls' Generation-TTS	South Korea	South Korea	best-selling artists	List of best-selling artists in South Korea
