The Delfonics are a pioneering Philadelphia soul singing group, popular in the late 1960s and early 1970s. Their most notable hits include "La-La (Means I Love You)", "Didn't I (Blow Your Mind This Time)", "Break Your Promise", "I'm Sorry", and "Ready or Not Here I Come (Can't Hide from Love)". Their hit songs were all written by songwriter and producer Thom Bell and lead vocalist and founder William Hart. Their songs have been used extensively in film soundtracks, including Quentin Tarantino's 1997 movie Jackie Brown, in which "La-La (Means I Love You)" and "Didn't I Blow Your Mind" underscore the pivotal relationship between the characters played by Pam Grier and Robert Forster. Their song "Ready or Not Here I Come (Can't Hide from Love)" was used in the video game Grand Theft Auto V on the fictional radio station The Lowdown 91.1. Their songs have been sampled extensively by various hip-hop and rap artists including: The Wu-Tang Clan, Fugees, Deltron 3030, The Notorious B.I.G., Nas, Boyz II Men, Missy Elliott and DJ Jazzy Jeff & the Fresh Prince. In addition, their songs have been covered by numerous other performers, including Aretha Franklin, The Jackson 5, Patti LaBelle, New Kids on the Block, Fugees, Todd Rundgren, Prince, Swing Out Sister and The Manhattan Transfer.