"Happy Days Are Here Again" is a song copyrighted in 1929 by Milton Ager and Jack Yellen and published by EMI Robbins Catalog, Inc./Advanced Music Corp. The song was recorded by Leo Reisman and His Orchestra, with Lou Levin, vocal, and was featured in the 1930 film Chasing Rainbows.
Kek. Yellen. Kek. kek.