Most weeks top 20 - Hot 100

[Gary]

Most Weeks in Hot 100's Top 20 - 3-16-2019 chart
46, "You Were Meant for Me"/"Foolish Games," Jewel, No. 2 peak, April 19, 1997
42, "Shape of You," Ed Sheeran, No. 1 (12 weeks), Jan. 28, 2017
42, "Uptown Funk!," Mark Ronson feat. Bruno Mars, No. 1 (14 weeks), Jan. 17, 2015
40, "Girls Like You," Maroon 5 feat. Cardi B, No. 1 (seven weeks), Sept. 29, 2018
40, "Perfect," Ed Sheeran duet with Beyoncé, No. 1 (six weeks), Dec. 23, 2017
40, "Party Rock Anthem," LMFAO feat. Lauren Bennett & GoonRock, No. 1 (six weeks), July 16, 2011

[rimetm]

Yay, just 3 weeks away from taking the de facto record...is what I’d say if I wasn’t sick of the song.

But yeah, I understand why double-A-sides were combined in the 90s, but they really do mess up longevity milestones when both songs were spaced out radio monsters.

[Gary]

The split on the Jewel single

You Were Meant For Me 31 weeks
Foolish Games 15 weeks