Looks like Cameron Diaz has had a busy week (but don’t all celebs?). After winning an Environmental Media Award for her show Trippin’, she surprised a class at Stanford University when she helped lead a lecture on environmentally friendly design with enviro celebrity William McDonough.

Her appearance is part of mtvU’s “Stand-In: Who’s Coming To Your Class?” which will be premiering on mtvU Uber on Nov. 1st.

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If you thought Cameron Diaz leading a class on eco-friendly design sounds a little odd, just imagine Marilyn Manson teaching little Johnny and Suzie Arts in Society!