Miss Sonny and Cher? You've got this, babe

'the nick & jessica variety hour'

When: 8 p.m. Sunday on WLS-Channel 7

Starring: Nick Lachey and Jessica Simpson

Guest starring: Kenny Rogers, Mr. T, Johnny Bench, Babyface,Jewel, Kermit the Frog and Miss Piggy

Does this sound familiar? "She was scamp, a camp and a bit of atramp. She was a v-a-m-p: Vamp!"

If you're too young to identify that little ditty as coming fromCher, planted atop a piano each week, on "The Sonny & Cher ComedyHour," then Sunday night's "The Nick & Jessica Variety Hour" on ABCmay well seem like a new idea.

Extremely odd, but new.

For the rest of us (and those youngsters who might have caught aglimpse of "Sonny & …