DiCaprio teams up with friend Q-Tip to create a TV series based on A Tribe Called Quest and the Native Tongues.
Jason Bateman, Felicity Huffman, Justin Long, Edward Norton, Emmy Rossum and Forest Whitaker also appear in This Is Our Moment ad.
'Jackass' star also competing with Natalie Portman, Leonardo DiCaprio and Ellen Page, and James Franco for Best Jaw Dropping Moment.
Event also features Lizst's arrangement of Beethoven's Fifth Symphony for piano solo.
Program trains musicians who currently conduct amateur orchestras.
Slatkin also reportedly says heavy male musicians should avoid cummerbunds.
Orbital with Angelo Badalamenti, Sugar Ray, All Saints with William Orbit on Leonardo DiCaprio film's score.