Useless Celebrity History

Adam celebrates the five year anniversary of the day Rihanna headlined the Met Gala by walking us through the moments that solidified RiRi's status as a fashion icon.

Adam celebrates the three-year anniversary of the day Harry Styles proved he could sell out arenas solo.

Adam commemorates the 16-year anniversary of the series finale of "Friends."

About the cast of 'The Jersey Shore. '

Examining Lohan's music career

Ashlee Simpson