Fans were moved from an area in front of the stage to avoid possible injuries from swaying equipment, according to E! News. Read more here

Officials enforced Iran's law that women cannot perform public concerts.

After the show, Kylie took to social media to express her jubilation at the show-stopping set. Read more here

Jess Glynne supported the Spice Girls on the group's comeback tour earlier this month. Read more here

Christina followed her self-titled album with a Spanish album, Mi Reflejo, in 2000, and then 2002's Stripped, which spawned the racy hit single Dirrty. Read more here

Mac Miller died of a suspected overdose last September.