Jan. 12, 1991
Twenty-five years ago today: Garth Brooks took over atop Hot Country Songs with his plaintive ballad "Unanswered Prayers." All four singles from parent album No Fences topped the tally; "Prayers" followed "Friends in Low Places." "Two of a Kind, Workin' on a Full House" and "The Thunder Rolls" would become the set's third and fourth leaders, respectively.
Jan. 13, 1990
We were all a part of it: Janet Jackson's "Rhythm Nation" conquered the Hot R&B/Hip-Hop Songs chart.
Jan. 14, 1989
U2 logged its sixth and final frame atop the Mainstream Rock Songs chart with the retro-soulful "Angel of Harlem." The same week, the track entered the Billboard Hot 100's top 40, rising 42-33 (on its way to a No. 14 peak).
Jan. 15, 2000
More Xtina x-cellence: The first song to ascend to No. 1 on the Billboard Hot 100 in the 2000s? Sixteen years ago today, Christina Aguilera earned the honor with "What a Girl Wants."
Jan. 16, 1988
The last No. 1 to date by a member of the Beatles topped the Billboard Hot 100 28 years ago today, as George Harrison's "Got My Mind Set on You" (featuring Ringo Starr on drums) reached No. 1. Co-produced by ELO's Jeff Lynne, the song sparked the supergroup Traveling Wilburys (Harrison, Lynne, Bob Dylan, Roy Orbison and Tom Petty); meanwhile, Lynne is back with first new ELO album in 15 years: Alone in the Universe debuted at No. 23 on the Dec. 5 Billboard 200, marking the band's highest rank on the chart since 1981.
Jan. 17, 2009
Birth of a Monster: Seven years ago today, Lady Gaga crowned the Billboard Hot 100 for the first time, as her debut entry, "Just Dance," featuring Colby O'Donis, spent its first of three weeks at No. 1.