what was the  American singer that sing  "We're Getting Stronger" known for 
Million Dollar Bill:  The song samples R&B singer Loleatta Holloway's "We're Getting Stronger" from Holloway's 1976 debut LP. Loleatta Holloway: Loleatta Holloway ( ; November 5, 1946 – March 21, 2011) was an American singer, mainly known for disco songs such as "Hit and Run" and "Love Sensation", both of which have been sampled extensively.
disco songs