for cbs 2 sports, i'm steve overmeyer. have a good day. >> steve, we will. >>> in this morning's "two talkers," a big birthday present for a legendary singer. >>> but, first, a dance lesson from a tennis star. let's turn it back over to alex. >>reporter: yeah, so we know serren ap dl for moves on the dance floor, but now she's holding her moving on the dance in her latest feature with self magazine, serrena is teaching readers how to twerk in a step- by-step video. the 22 grand slam title holder takes us through the warmup process, proper placement of the hands, knees and the correct way to arch. not sure -- she is in brazil right now, getting ready to compete for her sixth gold medal. in the september issue, serrena also opens up about the challenges of staying number one. the issue hits shelves da sister. it's going to be really exciting. >>reporter: i know. >> apologize to some about the twerking. >> it's not us doing it. >> i'm just saying. >>reporter: so the empire state building was like a giant candle on a birthday c