TV picks for May 15-17:  "Baby Mama," "Superstar Duets," Mariah Carey, "Mad Men"

Mariah Carey, pictured, makes an attempt to reclaim her diva status with an appearance on "The 2015 Billboard Music Awards," hosted by Ludacris and Chrissy Teigen. Carey may not be a hot hitmaker now, but keep in mind that she's had more No. 1 songs than any other solo artist in the Billboard chart's 56-year history. 7 p.m. Sunday, KSTP, Ch. 5

Comedy's most consistent duo has to be Tina Fey and Amy Poehler as they proved so successfully in 2008's "Baby Mama," a romp in which Fey picks an inappropriate surrogate mother. Can these two please make a movie every two months? 7 p.m. Friday, Oxygen

No group finds more creative ways to party than country music artists, which is why we're looking forward to "ACM Presents: Superstar Duets," with the likes of Reba McEntire, Miranda Lambert and Alabama showing what teamwork is all about. 8 p.m. Friday, WCCO, Ch. 4

From the looks of it, Don Draper's world will never be the same — and neither will ours. "Mad Men," which concludes its critically acclaimed run, may not go down as the greatest drama of all time — although some will make that argument — but it was instrumental in proving that basic cable could produce TV just as riveting as HBO and Showtime. One last toast to old friends. 9 p.m. Sunday, AMC

Neal Justin