In terms of stage presence, she's developping and she doesn't fade into the background or getting overshadowed by the surroundings like in all her 'DHYB' and 'RT' performances.The vocals, however, weren't good...AT ALL!Those last 30 seconds...VERY memorable!I could feel her larynx being abused...That's not singing, that's not even Christina-type vocal acrobatics, that's plain screaming.

Anyway, when it comes to the song itself, I'll have to wait for the HQ version.