Celebrities Who Guest-Starred on 'Pretty Little Liars

The hit drama series lasted for seven seasons and featured several guest stars, including singer Adam Lambert and actress Rumer Willis.

Celebrities Who Guest-Starred on 'Pretty Little Liars

10 'Pretty Little Liars' Guest Stars You Forgot About

10 'Pretty Little Liars' Guest Stars You Forgot About

Eric Kahn's Instagram, Twitter & Facebook on IDCrawl

10 'Pretty Little Liars' Guest Stars You Forgot About

Eric Kahn's Instagram, Twitter & Facebook on IDCrawl

10 'Pretty Little Liars' Guest Stars You Forgot About

Celebrities Who Guest-Starred on 'Pretty Little Liars

Eric Kahn's Instagram, Twitter & Facebook on IDCrawl

Celebrities Who Guest-Starred on 'Pretty Little Liars

Eric Kahn's Instagram, Twitter & Facebook on IDCrawl

Celebrities Who Guest-Starred on 'Pretty Little Liars

Celebrities Who Guest-Starred on 'Pretty Little Liars