So, Whitney Houston's comeback single has popped up online. The big question: what's her voice like? Well, she sounds deeper and raspier than you might remember, and her range isn't really what it was, but on this evidence she can still carry a tune better than most in the business.

The almost-as-big question: what's the tune like? Hmm... not great to be honest. It's a Diane Warren-penned empowerment ballad called 'I Didn't Know My Own Strength' that sounds as if it could have been recorded at any point in the last 15 years. Like most recent Diane Warren songs, it's a bit lacking in the chorus department and the lyrics are positively dripping with clichés: "Hold my head up high", "Survived my darkest hour", "Wondered how I'd get through the night"... we could go on.

Let's hope there's fresher stuff to come - we're hoping for an album that will position Whitney at the forefront of modern R&B, while still offering nods to her classic sound, much as 1998's My Love Is Your Love did.

What do you think of 'I Didn't Know My Own Strength'? Has Whitney still got it? Use the space below to have your say.