专辑《By Popular Demand， Vol. 9》歌曲列表：

• We Can’t Stop
• Beauty and the Beat
• Best Song Ever
• 22
• Here’s to Never Growing Up
• Pom Poms
• My Songs Know What You Did in the Dark
• Lego House
• I Knew You Were Trouble
• Daylight
• Girl On Fire
• Just Give Me a Reason