#	Title	Length	Track artist	Release title	Country/Date
Official
1.1	Intro	0:27	No Doubt	Rock Steady	2001-12-11 XE
1.1	Intro	0:27	No Doubt	Rock Steady	2001-12-11 US
1.1	Intro	0:27	No Doubt	Rock Steady (BMG club edition)	2001-12-11 US
1.1	Intro	0:27	No Doubt	Rock Steady	2001-12-11 CA
1.1	Intro	0:27	No Doubt	Rock Steady	2001-12-11 US
1.1	Intro	0:27	No Doubt	Rock Steady	2001 ZA
1.1	Intro	0:27	No Doubt	Rock Steady (Made in Germany by Universal M & L)	2001 XE
1.1	Intro	0:27	No Doubt	Rock Steady	2001 AU
1.1	Intro	0:27	No Doubt	Rock Steady	2002-10-29 US
1.1	Intro	0:27	No Doubt	Rock Steady	2002-11-19 US
1.1	Intro	0:27	No Doubt	Rock Steady	2002-11-19 US
1.1	Intro	0:27	No Doubt	Rock Steady (Limited Edition Double CD Pack)	2002 XE
2.1	Intro	0:29	No Doubt	Tragic Kingdom + Rock Steady	2009 -
2.1	Intro	0:29	No Doubt	Tragic Kingdom + Rock Steady	2009 ZA
1.1	Intro	0:27	No Doubt	Rock Steady (Made in Germany by EDC)	- XE
Bootleg
1.1	Intro	0:27	No Doubt	Rock Steady	2001 US
1.28	Intro	?:??	No Doubt	MP3	2008 RU
Withdrawn
1.1	Intro	0:27	No Doubt	Rock Steady (limited UK version)	2001-12-11 -

Intro (Rock Steady)

Appears on releases