This Week in Billboard Chart History: In 1968, The Beatles Began Their Longest Hot 100 Reign With 'Hey Jude'

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The Beatles photographed in 1968.

Plus, remembering feats by Selena Gomez, P!nk & Cher.

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

Sept. 24, 1988
30 years ago: Bobby McFerrin topped the Billboard Hot 100 with the a cappella pop culture smash "Don't Worry, Be Happy." (Feel more relaxed after listening?)

Sept. 25, 1982
It was no trick: The Steve Miller Band appeared at No. 1 on the Billboard Hot 100 with "Abracadabra."

Sept. 26, 2015
Selena Gomez scored her first No. 1 on the Pop Songs airplay chart, "Good for You," featuring A$AP Rocky. She'd also lead with her next two singles: "Same Old Love" and "Hands to Myself."

Sept. 27, 2008
10 years ago: She's still a rock star: P!nk notched her second Billboard Hot 100 No. 1 (of four so far), and first on her own, with "So What." She'd first reigned with Christina Aguilera, Lil' Kim and Mya on "Lady Marmalade" in 2001.

Sept. 28, 1968
50 years ago: The Beatles began their longest Billboard Hot 100 command, as "Hey Jude" set up at No. 1 for the first of nine weeks.

Sept. 29, 1990
Nelson, the pop-rock duo featuring Rick Nelson's long-haired sons Matthew and Gunnar, topped the Billboard Hot 100 with its catchy debut single "(Can't Live Without Your) Love and Affection." (Their father had tallied the Hot 100's very first No. 1, as "Poor Little Fool" led the inaugural Aug. 4, 1958-dated chart.)

Sept. 30, 1989
She found a way: Cher climbed to the top of Billboard's Adult Contemporary chart with "If I Could Turn Back Time."