1. This Week in Billboard Chart History: In 2012, Carly Rae Jepsen Dialed in to No. 1 on the Hot 100

This Week in Billboard Chart History: In 2012, Carly Rae Jepsen Dialed in to No. 1 on the Hot 100

This Week in Billboard Chart History: In 2012, Carly Rae Jepsen Dialed in to No. 1 on the Hot 100

Your weekly recap celebrating significant milestones from more than seven decades of Billboard chart history.

June 19, 1965After three prior hits – the classic "Baby I Need Your Loving" rose the highest (No. 11) – the Four Tops scored their first Billboard Hot 100 No. 1, as "I Can't Help Myself (Sugar Pie Honey Bunch)" reached the top.

June 20, 199225 years ago: Mariah Carey's "I'll Be There," from her MTV Unplugged special, topped the Billboard Hot 100. As the Jackson 5's original version hit No. 1 in 1970, the song is one of nine compositions to lead the Hot 100 as recorded by two artists.

June 21, 2008Her mama (in the song) might've been ashamed that her daughter didn't know her last name after waking up married in Vegas, but the real life mom of Carrie Underwood had to be proud when the singer's "Last Name" topped Hot Country Songs.

June 22, 2013The 2013 song of the summer began its 12-week domination atop the Billboard Hot 100, as Robin Thicke's "Blurred Lines," featuring T.I. and Pharrell, reached the summit.

June 23, 2012And, five years ago … the 2012 song of the summer started its nine-week command of the Billboard Hot 100: Carly Rae Jepsen's "Call Me Maybe." She's since added two more top 40 hits: "Good Time," with Owl City (No. 8, 2012), and "I Really Like You" (No. 39, 2015).

June 24, 1989After landing four Billboard Hot 100 top 10s from his self-titled debut album in 1987-88, including the No. 1 fourth single "Hold On to the Nights," Richard Marx reigned again with "Satisfied." The song was released as the lead single from his second album, named, with a wink at rock critics, Repeat Offender.

June 25, 1988Debbie Gibson became the youngest person to have written, produced and sung a Billboard Hot 100 No. 1 entirely on her own, as "Foolish Beat" skipped to the top spot. How'd she follow that achievement? The very next day, the then-17-year-old graduated high school.