Given the rationale, provide a reasonable question and answer. Step-by-step reasoning process: To answer the question, consider the following: In 2017, the singer revealed that "The One That Got Away" was about Josh Groban.
The question and answer:
Originally titled "In Another Life", the song was produced by Dr. Luke and Max Martin, both of whom co-wrote it with Perry. It is a midtempo pop song positioned on the piece of E major and has a tempo of 134 beats per minute. Joanna Holcombe from Yahoo! Music noted that the song is about first loves. Leah Greenblatt from Entertainment Weekly, said that the song is "a midtempo ode to a summer-after-high-school love with whom she recalls sharing Mustang makeout sessions to Radiohead"'. Michael Wood from Spin magazine said that the song is one of the album's quieter cuts and that it recall (s) "Perry's singer-songwriter days at L.A.'s Hotel Cafe". The song follows the chord progression of E -- G m -- C m -- A, and Perry's vocal range spans from B to E. Kitty Empire noticed that Perry's vocal is wistful throughout the song and that the references to June and Johnny Cash were unexpected. Rob Sheffield from Rolling Stone stated that when Perry sings,' I was June, and you were my Johnny Cash,' "it's understood that she's thinking of the scrubbed-up Hollywood version of June and Johnny, from Walk the Line." In 2017, the singer revealed that "The One That Got Away" was about Josh Groban.

Who was the one who got away katy perry?
The answer is Josh Groban