Carson takes over the midday shift (10 a.m. to 3 p.m.) vacated by Heather Walters who left the station last week.
Carson starts at Fresh on February 7.
She comes to Fresh after many years at WLTW/Lite FM. At her most recent stint with the Clear Channel powerhouse, Carson was co-host of the morning show from 2007 to 2009.
“I am thrilled to become a part of CBS Radio and the team at Fresh. I am even more thrilled to be working once again for program director Jim Ryan,” Carson said in a statement, “He has given me more opportunities in New York Radio than anyone and he is great to work for. I love his vision for Fresh and can’t wait to be a part of it.”