She and her American are part of a quartet of voices belonging to characters who remember something inexplicable that they will never forget.

O. Bignami Viola which was part of a quartet from 1976:

In 1993, they were part of a vocal quartet that had landed a deal with Tommy Boy.

On Sunday nights, King performed live gospel music as part of a quartet.

Often in her youth, Kat would sing as part of a quartet with her parents and her brother Jon.

She is also the only female to reach the UK number one spot as part of a quartet, a quintet, a duo and solo.

After the 1980s, Pearson made occasional live appearances as part of a quartet.

During the late 1980s Cowell was part of a regular quartet led by J.J. Johnson.

Originally part of a quartet, the two left the group in 1994 to form the duo.

He was part of a quartet wearing the silvery numerals that make up "1997" on their heads.