"That Lady" is a 1973 R&B and soul song by The Isley Brothers, released on their T-Neck imprint. It was originally performed by the group nearly a decade before in 1964 inspired by The Impressions. After signing with Epic Records in 1973, the eldest members of the group had included younger members, guitarist Ernie Isley, bassist Marvin Isley and keyboardist/pianist Chris Jasper, as official members. In a response to this transformation, the group gave themselves the moniker of 3 + 3, describing the three original vocalists in the group and three recruited instrumentalists, inspiring the title of the album that came out that year. They performed the song on Soul Train on September 22, 1973. The group entered the studio to remake "Who's That Lady?" after being inspired by rock acts such as Carlos Santana bringing a Latin percussive rock feel to it, including congas and an organ solo by assorted other musicians while the other Isleys played various instrumentation. The two youngest Isley brothers and in-law Jasper re-wrote the instrumental while the older brothers revamped their harmonies, with Ronald's vocal smoother than the original version. Brother Ernie Isley's Jimi Hendrix/Santana-inspired guitar solo was one of the elements that defined the 3 + 3 era of the Isleys, and the song became their first Top 10 pop single since 1969's "It's Your Thing" peaked at #2 on the pop singles chart, reaching #6 on the pop chart and #2 on the US R&BSingles chart. It was also a cross-Atlantic hit for the group, reaching #14 in the UK. The song is ranked #357 on Rolling Stone's list ofthe 500 Greatest Songs of All Time.
In 2001, instrumentalist Peter White covered the song in his album Glow. Rapper Kendrick Lamar sampled the song on the track "i", released in 2014 as a single from his 2015 album To Pimp a Butterfly. The rap groupBeastie Boys sampled the song on their 1989 album Paul's Boutique, in the song "A Year and a Day", which was a solo track performed by MCA. Smooth Jazz guitaristPatrick Yandall recorded an instrumental cover of the song on his 2019 album “When It’s Hip”.
