From Ron Smith's facebook page. I love this little tidbit of minutia...
Leap Year #1's in Chicago 1948-1988:
2/29/1948 - I'm Looking Over A Four Leaf Clover-Art Mooney
2/29/1952 - Blue Tango-Leroy Anderson
2/29/1956 - Poor People Of Paris-Les Baxter
2/29/1960 - The Theme From "A Summer Place"-Percy Faith
2/29/1964 - I Want To Hold Your Hand and She Loves You Beatles
2/29/1968 - Love Is Blue-Paul Mauriat
2/29/1972 - Without You-Nilsson
2/29/1976 - December, 1963 (Oh, What A Night)-Four Seasons
2/29/1980 - Rock With You-Michael Jackson
2/29/1984 - 99 Red Balloons/99 Luftballons-Nena
2/29/1988 - Pump Up The Volume-M/A/R/R/S
This has to be the last #1 song in America sung in German...