This week in 1991 Bill Murray and Richard Dreyfuss stared in the hilarious film 'What About Bob?', Apple released a new operating system and Amy Grant released her biggest hit.

Opening up this week was the comedy 'What About Bob?' starring Bill Murray and Richard Dreyfuss. The film was about a psychiatric patient who follows his egotistical psychiatrist on vacation. When the unstable Bob befriends the doctor's family, it sends the doctor over the edge. The hilariously comedy was a success making over $65 million at the box office.

Apple released it's Macintosh System 7.0. It remained the main Mac operating system until 1997 and included virtual memory, personal file sharing, QuickTime and an improved interface.

The number one song this week in '91 was Amy Grant's 'Baby Baby'. Grant co-wrote the song and begged to sing it. Her only condition was she had to title it 'Baby Baby'. After weeks of having trouble writing the lyrics, her inspiration came while she was holding her six week old daughter and said "Oh baby baby". In just ten minutes the song was written and Grant knew she had a smash hit on her hands.