Tune down 1 Half Step
[ Tab from: http://www.guitaretab.com/k/katy-perry/290769.html ]
Rhythm riff in 4/4
B G#min7 D#min7 C# B
d u d u d u d u d u d u d u d u d u d u d u d u d u d u d u d u
eb|---------------------------------7-7-7-X-7-7-7-X---------------------|
Bb|-o-5-5-X-5-5-5-X-5-5-5-5-5-5-5-X-8-8-8-X-8-8-8-X-7-7-7-X-7-7-7-X-5-o-|
Gb|---5-5-X-5-5-5-X-5-5-5-5-5-5-5-X-7-7-7-X-7-7-7-X-7-7-7-X-7-7-7-X-5---|
Db|---5-5-X-5-5-5-X-5-5-5-5-5-5-5-X-9-9-9-X-9-9-9-X-7-7-7-X-7-7-7-X-5---|
Ab|-o-3-3-X-3-3-3-X-0-0-0-X-0-0-0-X-7-7-7-X-7-7-7-X-5-5-5-X-5-5-5-X-3-o-|
Eb|---------------------------------------------------------------------|