A heavily-reverbed For You was Ricky Nelson's second-to-last top 20 hit (before Garden Party). Below (on the right, behind Nelson) is rockabilly legend James Burton and his trusty Fender Stratocaster. Burton left Nelson to back Elvis. From Wikipedia:
"For You" is a song written by Johnny Burke and Al Dubin in 1930. Burke was one of the writers of "Ramblin' Rose" and Dubin wrote the songs for the Broadway show 42nd Street. The Glen Gray Orchestra recorded it with Kenny Sargent doing the vocals. Perry Como recorded it in November 1947, releasing the song in 1948. Dean Martin recorded it for an album in 1957. Timi Yuro also recorded the song. It was released on her LP Timi Yuro (Liberty LRP-3208 (mono) and Liberty LST-7208 (stereo)) in 1961.
The biggest hit version of the song was recorded by Ricky Nelson in 1963. Nelson's version went to number six on the US pop chart and spent two weeks at number one on the "Middle-of-the Road" (or adult contemporary chart) in early 1964.