She lit up the hardwood with her fiery moves on SYTYCD and DWTS

for six sizzling seasons . . . and now she joins Cheryl to serve up some hot tea! 

Lacey Schwimmer opens up about what it was like growing up at ballroom competitions, what made her hate dancing for a while, why she blocked out a lot of memories from SYTYCD, and dealing with being fat-shamed on DWTS while being size 6. 

Plus, Lacey reveals how she felt after being told she would not win on SYTYCD . . . in advance, wild shenanigans backstage on DWTS, and, of course, a round of rapid-fire questions!