Break-up of the Beatles Lennon was in a fragile state of mind after returning from the band's sojourn in India in early 1968 and was disillusioned and resentful that their Transcendental Meditation guru, Maharishi Mahesh Yogi, had not fulfilled Lennon's expectations. Lennon became discontented over his personal identity and his artistic role within the Beatles and entered another period of drug use, which coincided with a deterioration in his marriage and family life. He began to develop an intense interest in the work of Yoko Ono, a Japanese-American conceptual artist whom he had first met at one of her exhibitions in 1966. The pair
The Beatles: Rock Band Sun", was finished in February 2008. It was used to gain approval from McCartney, Starr, Ono and Olivia Harrison, effectively bringing them aboard the project as creative partners. The Apple Corps shareholders considered "The Beatles: Rock Band" a new way to introduce the band's music to the public. They approved of the songs and venues that would appear in the game, and provided feedback on the artwork, character representations, and storyboards for animation sequences. McCartney and Starr fact-checked certain anecdotes relating to The Beatles while Ono and Harrison provided insight on their late husbands' performances and lyrics. At the developer's