"
Duets", ABC's new reality competition singing show, isn't exactly exploring uncharted territory (see: NBC's "
The Voice" and Fox's "
American Idol"). While part of the show's formula is familiar,
Robin Thicke told "Good Morning America" (weekdays, 7 a.m. ET on ABC) what makes "Duets" unique."What's fun about it is it's very unpredictable because you get to see a free concert almost every show from
John Legend, Jennifer,
Kelly Clarkson ...