It's an incy wincy clip, but I thought it was worth posting as it shows Christina Aguilera's voice in a different light- at least to me!
Giving her team on The Voice US some coaching on their delivery of Listen, the Lady Marmalade singer went into a head voice-weighted chest mix on the line "you don't know what I'm feeling". The tone produced was a surprise to me, being light-weight, sweet and like nothing I've heard from the Diva before. Her mid-range on the following demo was also music to my ears, showing how beautiful Christina's voice can be when it's not smashing you around the head with volume and faux-power.
Is this a versatility that has come with the vocal traning she was reportedly undergoing months back, or is this just the Diva using her voice in a way that she hasn't yet utalised in her recordings? Either way, I'd certainly like to hear more of this variety in texture and tone!