Ono also hints that she will collaborate with the Flaming Lips
New postcard project set to go live in London
She recruits son Sean Lennon and Cornelius
Competition starts today (May 18) in conjunction with London train stations
Rufus Wainwright performs at the bash in New York
John Lennon's widow denies name claims
She urges artwork to be downloaded
Ceremony to take place on John Lennon's 67th birthday
Pet Shop Boys and Basement Jaxx to feature