Lindsay Lohan takes the Ice Bucket Challenge, and Jared Leto's 30 Seconds to Mars performs on "The Tonight Show." Take a look!

Once the broadcast airs, the name not formally advertised for NBC’s “The Tonight Show Starring Jimmy Fallon” will be the one making the most waves.

Lindsay Lohan, who was not originally billed for Wednesday’s show, ends up appearing to do the ALS Ice Bucket Challenge.

Taped Wednesday afternoon, Lohan’s trip under ice water comes during a packed “Tonight Show” that includes appearances by Jared Leto and Amy Brenneman. Leto’s band 30 Seconds to Mars closes the show with a performance.

A set of first look photos from the taping, including ones capturing Lohan’s successful completion of the challenge, Leto’s involvement in various segments, Brenneman’s interview and the 30 Seconds to Mars performance, follows. A video of Lindsay Lohan’s Ice Bucket Challenge attempt is also below:

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