review “Hacks” returns with its funny ladies on the mountaintop, but questions the cost of the climb Returning as 61-year-old Vanessa Williams drops a club track, the show reaffirms it still has legs, and miles to go Published May 2, 2024 1:30PM (EDT) Christopher McDonald in "Hacks" (Max) On April 26, Vanessa Williams pulled a Beyoncé – or is it a Cher ? – by dropping her first new single in 15 years without much fanfare, relying on its catchiness and her followers, online and IRL, to share the links and spread the word. “Legs (Keep Dancing)” isn’t just Williams’ first new single in 15 years, it’s a dancefloor paean to aging fiercely that spins around its catchy refrain of, “They say the legs are the last to go/ I’ma keep dancing.” Her explanation of the single’s message on Tuesday’s “Today” sounds straight out of Deborah Vance’s playbook on “ Hacks .” “It’s like, I’m still here. I’m still relevant.…