The studio version was recorded at Saturn Sound Studios, Worthing, West Sussex in March 1974, with Phil Lynott on vocals and bass, Gary Moore on guitar and Brian Downey on drums. Moore later said the song was a combination of two pieces; Lynott's "Still In Love With You" with his "I'll Help You See It Through", which he had been working on for some years. Moore left the band the following month, and the song ended up being credited on Nightlife to Lynott alone. "Still in Love with You" was one of the demos that secured the group's contract with Phonogram Records in summer 1974, by which time Moore had been replaced by guitarists Brian Robertson and Scott Gorham. Manager Chris O'Donnell later said he lied to the Phonogram representatives, saying Robertson played the solo instead of Moore. The group returned to Saturn Sound in October to put overdubs on the track. Scottish singer Frankie Miller also featured on the Nightlife version of the song, joining Lynott in a duet. Robertson refused to re-record the guitar solo, believing that it could not be improved upon. He considers it his signature song as he played the most famous version, on Thin Lizzy's double live albumLive and Dangerous, and would not let it be removed from the band's setlist. The song was featured as a set-closer in the band's live shows and became a showcase for each of the band's guitarists, featuring in their live set until the band split in 1983. On his video, Still in Love with the Blues, Thin Lizzy guitarist Brian Robertson described the song, as "a slow blues". The song is usually played in the key of A minor but Thin Lizzy often down-tuned half a step when playing live for a heavier live sound, as is the case for the double live album, Thin Lizzy - Live and Dangerous, making the actual key recorded A flat minor. During 2011–12, the touring version of Thin Lizzy performed the song as a duet, with vocals shared between keyboard playerDarren Wharton and frontman Ricky Warwick. Live versions of the song were released as the b-side of the "Thunder and Lightning" single in April 1983, and as one of four tracks on the 12" release of "Dedication" in 1991. A re-recording appeared as a B-side to the "Out in the Fields" double single and 12" by Gary Moore and Phil Lynott in 1985.
A cover of this song was recorded by Bobby Tench, and released on the Stiff label in 1986. This version features Thin Lizzy guitarist Brian Robertson and the B side is entitled "Heart Out of Love" which was co-written by Peter Bardens and Tench.
British R&B/soul band Sade covered the song on their 2011 compilation album The Ultimate Collection. It was released as the first single from the album and was included on the Sade Live Tour setlist. In Europe, it was released as a promo single along with another song from the album titled "Love Is Found". Sade's cover of the song received a positive reception from critics upon its release. Billboard described Sade's cover as "one of the group's finest unreleased treasures" in its review of the single. Andy Kellman of AllMusic Guide called the song "The best of the new songs" from the new compilation.
