On August 11, 1961 RCA Victor released "His Latest Flame" / "Little Sister". On the 21st of the month Billboard listed "Little Sister" at number 61 of their "Hot 100". The song stayed on the chart for 13 weeks and peaked at number 5. The following week "His Latest Flame" appeared on the hitparade, too. Within its run of 11 weeks the song climbed from number 66 to number 4. On the "Adult Contemporary Chart" the track was even more successful. Here it also stayed for 11 weeks, but peaked at number 2. In 1992 the RIAA honored the domestic sales with a Gold Award. The single also sold well in Europe and Australia, in total the label was able to retail 3.25 million copies, which translates to 487.5 million paid streams. It proved to be a bad idea to release two strong tracks on a single record. At the time the charts were not just calculated by sales, but also by radio airplay and the opinion of the buyers (some were asked which song made them buy the single). Because both tracks were often played on the radio and the audience didn't name a clear favorite, both songs charted high, but none became a number one hit.

The single is not available on the streaming platforms, but the songs can be found on the album "Elvis' Golden Records - Volume 3" (1963). In 2016 the complete Presley catalogue was restored and remastered by Vic Anesini for a boxed set of 60 compact discs called "The Album Collection". Sony Music Entertainment provides the streaming platforms with the same versions of the individual tracks, albeit in 24 bit/90 khz flac. That means, if the platform of your choice supports high resolution audio, you can enjoy the songs in the same quality Sony used to scan and master them. On Spotify, which has a market share of approximately 30% and is the only platform that publishes streaming figures, "His Latest Flame" accumulates 49 million streams, "Little Sister" clocks in at 31 million.

The sleeve was designed with a promo photo for "Flaming Star", which had been released the previous year by 20th Century Fox.

On June 25, 1961 Elvis recorded 12 takes at RCA Studio B in Nashville/Tennessee. Finally he selected the 8th attempt for release. A friend tells the narrator of his latest flame, a girl named Marie. Suddenly he realizes, that the lady is his own girlfriend and obviously isn't as faithful as expected. Even though the story is quite sad, the melody is happy and also Elvis' performance doesn't display even the slightest bit of anger or hurt. But that's the charme of "His Latest Flame". In 1963 the track was also released on "Elvis' Golden Records - Volume 3", in 1971 it was part of the boxed set "The Other Sides - Worldwide Gold Award Hits Volume 2". By the way: The song was written by Doc Pomus and Mort Shuman.

The duo also wrote "Little Sister" and it was recorded on June 25, 1961, too. Elvis taped 11 takes and approved the 4th one for release. The song is dominated by a (for the time) hard played electric guitar, but I still regard "Little Sister" to be a popsong rather than rock'n'roll or r&b. The studio recording later also appeared on the longplayer "Elvis' Golden Records - Volume 3" (1963) and the boxed set "Worldwide 50 Gold Award Hits - Volume 1". A live version can be found on "Elvis In Concert" (1977).