Are they the brother and sister act from XFactor (or similar?). I actually liked 'em. They were wonderfully cheesy and so cheery, it was kind of sweet.
Yes they were sweet, but sometimes in the pop charts that's riddled with angst ridden teens who warble away about problems they haven't ever felt, it was wonderfully refreshing just to see someone happy.
They would be OK in a 2nd rate end of the pier show!! The ones that have about 6 people in the audience! - or failing that children's entertainers for birthday parties.