Reba on The Voice, American Idol narrows to Top 12

On today's What to Watch: On the new episode of American Idol, American gets to vote for the first time, helping narrow the field to the Top 12. The Voice welcomes Reba as Mega Mentor. On the season finale of Perry Mason, the team prepares Rafael and Mateo for trial. Plus, Hollywood trivia, This Week in Entertainment History, and entertainment headlines, including Super Mario Bros.'s continued box office success, Disney cancels the National Treasure series, and the death of Dame Edna. More at ew.com, ew.com/wtw, and @EW on Twitter and @EntertainmentWeekly everywhere else. Host/Writer/Producer: Gerrad Hall (@gerradhall); Producer/Writer: Ashley Boucher (@ashleybreports); Editor: Samee Junio (@it_your_sam); Writer: Calie Schepp; Executive Producer: Chanelle Johnson (@chanelleberlin). Learn more about your ad choices. Visit podcastchoices.com/adchoices