The Hillside Stranglers Kenneth Bianci and his cousin Angelo Buono, Leonard Lake and Charles Ng, Charles Starkweather and Carol Fugate, these are probably the best known.
Amanda Palmer is most famous for being the lead singer of the duo "The Dresden Dolls". Not only was she famous in the duo, but she also had a successful solo career.
Hall and Oates were made the most famous for their music in the 70s and 80s. They are a duo team that pairs up to sing and record music songs together.
Laurel and Hardy. They would probably be the most famous, but I'm not sure. I know they are up there somewhere...
Hall and oates
Pat Kane is a famous Scottish musician who was in the music duo of Hue and Cry. The group also featured his brother Greg, and promotes the idea of Scottish independence.
Bonnie Elizabeth Parker, who was born on October 1st, 1910 and died on May 23rd, 1934, was famous as an American robber and criminal. Bonnie and her partner made the famous criminal duo 'Bonnie and Clyde'.
That was Oliver Hardy.
Rodgers & Hammerstein
King Khan, originally named Arish Ahmad Khan, is a Canadian musician. King Khan is most famous for King Khan and the BBQ Show which is a Canadian Garage rock duo.
Jayne Torvill is a professional Ice skater so is Christopher Dean
The famous comedy duo that inspired the characters R2-D2 and C-3PO from Star Wars is Laurel and Hardy. The characters were designed to mirror the comedic dynamic between Laurel and Hardy.
The American musical duo Hall and Oats first became majorly famous in the late 1970s with a mix of rock and roll and rythm and blues. Their best songs contained strong hooks and melodies that adhered to soul traditions. This unique brand of music was named by the duo as "Rock and Soul."