"Lady Navigation" is the eighth single by B'z, released on March 27, 1991. This song is one of B'z many number-one singles in Oricon chart. The single was re-released in 2003, and re-entered at #6. This song sold over 1,172,000 copies, becoming their first single to sell over one million copies, according to Oricon.It also charted at #7 in the 1991 yearly charts, becoming their first yearly top 10. The song won "the best five single award" at the 6th Japan Gold Disc Award.