This is not about how many Underperforming but how many flopped. I'm sure you can use common sense to determine if something flopped,
If a single was released in limited territories and flopped there it doesn't count


Post who your fave is and Which Single(s) flopped... or who hasn't had a flop single

One

Technically for Rihanna, 3. (We Ride, Rockstar 101 and If It's Loving That You Want i guess)

Urban songs, like Man Down, Talk That Talk, and Birthday Cake aren't expected to do better than they did.

1 terrible flop
well deserved though

This never works with stans though

One. "Story of Us"

Just 1, and hopefully it will stay like that

None. "Thinking of You" did well for a buzz single.

Rihanna has two songs that didn't reach the top 40

Katy has one

15+

But didn't Judas go top 10?

We Ride, and ROckstar 101. 3 if you count Man Down.

The Story Of Us

Never Too Far, Don't Stop (Funkin' 4 Jamaica), Through the Rain, Boy (I Need You), Say Somethin', I'll Be Lovin' U Long Time, I Stay in Love, I Want to Know What Love Is, Triumphant (Get 'Em).

Flop free in the 90s.

Sadly, CKB flopped

And TTT was the official 3rd single until BC came out

Bruno Mars: 0
Katy Perry: 0. If you consider that a 29 peak with a ballad from a debut album is a flop...

Nuh uh

15+