The rocker, real name Alicia Beth Moore, had been performing as part of the iTunes Festival in front of a few lucky fans, who managed to secure tickets for free by way of a lottery.
The star released her new single 'Blow Me (One Last Kiss)' last week in the UK, and will follow it with new album 'The Truth About Love' on Monday (September 17).
It's her first studio album since 'Funhouse' in 2008, which spawned 'So What' and 'Please Don't Leave Me.' In 2010 she released her first Greatest Hits collection, which featured new songs 'Raise Your Glass' and 'Perfect.'
P!nk has been teasing her new album on her YouTube page all week, with songs including 'Sl*t Like You', 'How Come You're Not Here' and 'True Love,' featuring Lily Rose Cooper.