2010s: We, Yeah, F*@%k, Die, Hell
2000s: Breathe, U, Like, It, Ya
1990s: U, You, Thang, Love, Up, Get
1980s: Love, Fire, Rock, On, Don't
1970s: Woman, Disco, Rock, Dancin', Music
1960s: Baby, Twist, Twistin', Lonely, Little
1950s: Mambo, Rednosed, Christmas, Penny, Three
1940s: Polka, Serenade, Boogie, Christmas, Blue
1930s: Moon, Swing, In, A, Song
1920s: Sweetheart, Mammy, Rose, Blues, Pal
1910s: Gems, Rag, Home, Land, Old
1900s: Uncle, Old, Josh, Reuben, When
1890s: Uncle, Casey, Michael, Josh, Old
My, we certainly have evolved, haven't we? Here is the article it came from.
Now I am curious how many song titles had just the letter 'U' in them for two years in a row. I found one in 2000: 'U Know What's Up' by Donell Jones, and 'U Remind Me' by Usher in 2001.
Here is where the raw data came from.
If you like the old songs from years gone by, you might enjoy reading some of those lists.

This is the 1950s, and I can hear most of those songs in my head, not because I'm that old, I've collected them on vinyl and CD over the years.