Julian Lennon stepsister, Kyoko Chan Cox. Paul McCartney wrote "Hey Jude" to console him over the divorce; originally called "Hey Jules", McCartney changed the name because he thought that "Jude" was an easier name to sing. After his parents' divorce, Julian had almost no contact with his father until the early 1970s when, at the request of his father's then short-term girlfriend, May Pang (Yoko Ono and Lennon had temporarily separated), he began to visit his father regularly. John Lennon bought him a Gibson Les Paul guitar and a drum machine for Christmas 1973, and encouraged his interest in music by showing
Julian Lennon Insurance commercial. In 2006 he ventured into Internet businesses, including MyStore.com with Todd Meagher and Bebo founder Michael Birch. In 2009 Lennon created a new partnership with Meagher and Birch called theRevolution, LLC. Through this company, Lennon released a tribute song and EP, "Lucy", honouring the memory of Lucy Vodden (née O'Donnell), the little girl who inspired the song "Lucy in the Sky with Diamonds", with 50 per cent of the proceeds going to fund Lupus research. In October 2011, Lennon released the album "Everything Changes". In 2012 he worked with music film director Dick Carruthers on the feature-length video