American Idol: Katy Perry compares Cassandra Coleman to friend Florence Welch as she enters Top 24

'American Idol': Twitter Reacts to Heartbreaking Elimination & Katy Perry Look-Alike's Miley Cyrus Cover

Pregnant Ellie Goulding reveals Katy Perry and Princess Eugenie have been giving 'excellent advice'

Katy Perry & Orlando Bloom & More Celeb Couples Whose Love Was Stronger The Second Time Around