Bortnick has performed multiple times for live audiences of over 20,000 people and has raised record money for charities. Bortnick recorded music for DisneyвЂ™s Little Einsteins and is appearing on both Disney and Nickelodeon. He has shared the stage with musicians such as BeyoncГ©, Natalie Cole, Nelly Furtado, Smokey Robinson, Gloria Gaynor, Patti Labelle and The Pointer Sisters. He has performed and led symphony orchestras, and has opened Nelly Furtado's first show at the Hard Rock Arena.

Live performancesД«ortnick has performed both live and televised concerts, both national and international. Bortnick performed, singing and playing the piano, a song that he had written honoring Jay as 'The King of Late Night.' Bortnick wrote the music and lyrics to this tribute to Leno, as a present for his departure from the Tonight Show. He appeared with Terry Bradshaw and Blink-182. On May 19, 2009, Bortnick appeared on The Tonight Show with Jay Leno for the fourth time. On May 13, 2009, Bortnick appeared on Canada AM and performed his song 'Arctic Jazz'. Bortnick appeared on the Green episode, promoting Earth Day. On April 22, 2009, Bortnick appeared on Nickelodeon's show Yo Gabba Gabba as himself. Bortnick instantly asked if the koala liked music, and jumped on the piano to perform a jazz piece for the koala. On February 16, 2009, Bortnick appeared on the Australian television program Mornings with Kerri-Anne, where they surprised him by bringing out a koala. Bortnick recorded music for the show and appeared, as himself, on the show. On October 11, 2008, Bortnick appeared on the Disney Channel, on the show Little Einsteins. He appeared with Billy Bob Thornton and Brian Wilson of the Beach Boys. On September 3, 2008, Bortnick appeared on The Tonight Show with Jay Leno, for the third time. In the episode, Ethan told Winfrey that 'We still have to stay humble.'

The segment was titled 'Oprah Presents the World's Smartest Kids'. On May 12, 2008, Bortnick appeared on The Oprah Winfrey Show. He appeared with Dominic Monaghan and Sheryl Crow. On March 10, 2008, Bortnick appeared on The Tonight Show with Jay Leno for the second time. In 2007 Bortnick also appeared on such shows as The Martha Stewart Show, Good Morning America, Inside Edition, Access Hollywood, The Early Show. On this show, he met Cameron Diaz and Nelly Furtado. On May 10, 2007, Bortnick's national television debut was on the The Tonight Show with Jay Leno. He has helped raised record amounts of money for charities around the world, by performing, inspiring and educating. He has performed with many well known artists and has been featured on many National and International television programs. Ethan began playing a keyboard at the age of three and was composing music by the age of five.

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