Celebrity Guess Who? -- Boxers Edition

Guess which celebrity was wearing his pants down low and showing off his boxers while going through security at LAX airport in Los Angeles on Monday!?

Loving the red, purple, blue and green dog print…

Hint: He was wearing a blue cap.

Pharrell Williams! Pharrell Williams! Pharrell Williams!

Pharrell, 35, along with other notable musicians, is to work on a remix album for Maroon 5‘s Call & Response.