Cher says she’s terrified to be a guest judge tonight on “Dancing With the Stars” First things first, Cher will open the show with a “dazzling and spectacular performance of her hit song “Believe’” before sitting down next to Bruno Tonioli and Carrie Ann Inaba for the two-hour episode. Cher will also perform “I Hope You Find It” from her new album “Closer To The Truth.” So why is Cher so nervous? “I don’t know anything about ballroom dancing,” she admitted on a conference call on Friday. “I don’t want to be responsible for someone getting a different mark than a professional would give them. I like to know what I’m doing and do it really well. In this instance I have no idea what I’m doing.” Hopefully the other judges will cut her some slack, we’ll find out tonight.