"Gloria" is a song written by Northern Irish singer-songwriter Van Morrison and originally recorded by Morrison's band Them in 1964 and released as the B-side of "Baby, Please Do n't Go". The song became a garage rock staple and a part of many rock bands' repertoires. It is particularly memorable for its "Gloria!" chorus. It is easy to play, as a simple three-chord song, and thus is popular with those learning to play guitar.

Who sang the song gloria in the 1960s? Let's have some stream of consciousness first.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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The relevant information to answer the above question is: "Gloria" is a song written by Northern Irish singer-songwriter Van Morrison and originally recorded by Morrison's band Them in 1964 and released as the B-side of "Baby, Please Do n't Go". So, the answer is Them.