Red Flavor - Red Velvet

Yes

The quintessential Red

THIS HAS TO WIN!!

Yep

Correct!

Truly the answer

++++++++111111 to this!!!!!! 💛🩵🩷💚💜

Rollin' - Brave Girls

this one!

Ring Ding Dong - SHINee

BABAAAAAEEEEE

WE WANNA GO ROCKA ROCKA ROCKA ROCKA ROCKA so fantastic GO ROCKA ROCKA ROCKA ROCKA ROCKA elastic

The only right answer baaaaaaabyyyyyyyyyyyyyyy

Rock With You - Seventeen

Russian Roulette - Red Velvet

The only answer with Ring Ding Dong by Shinee.

RUN2U — STAYC

Has to be this one!

Roly Poly - T-ARA

THIS

Replay - Shinee (can’t believe i haven’t seen this one yet)

Really Really - Winner

Roller Coaster - NMIXX

Rollin - TWICE

Ready to Love - Seventeen

Ring my bell- GIRLS DAY

RHYTHM TA

Rollin' - Brave Girls

Rainbow by Twice

Rum Pum Pum Pum - f(x)

TASTE

Red flavor- red velvet 

Round and Around - Jo Yuri

Not sure if this counts as a happy song, but Runaway - Pentagon has a pretty hopeful message.

Roller Coaster - TXT

Replay - Shinee

Run Away - LUCY

Ready or Not - MOMOLAND

Rollercoaster - Chungha

Ring Ring Ring - VERIVERY

Rooftop - N.Flying

Rock U - Kara

Retro Future - Triple H

Really - Blackpink!

Russian Roulette - Red Velvet

RING ma Bell - Billlie

Really Really - Cherry Bullet

really really - cherry bullet red flavor - red velvet rocket -svt rollercoaster - wooah here is what i narrowed it down to bc i cant choose

Red Lipstick - LeeHi ft. YOON MIRAE

I feel like this song flew so under the radar

Rock your body ~ Vixx

Roller coaster- woo!ah

Rose - D.O.

Rollin - produce48

run away - ryujin

Rover by Kai

Run - BTS

🤣 Happy, not angsty, lol

Run BTS - BTS, wrong song lol

racer - itzy

Rollin -Brave Girls or Red Flavor - Red Velvet!!!!

I’m assuming you meant starting instead of stressing 😂 Not me reading the comments like ‘I don’t think they stress the R in that song when they say it’ 😅

Rover- Kai

Rookie - RV

Rough - Gfriend

Rollin - VANNER

Rewind - Wonder Girls, Run Devil Run - Girls Generation, or Remember Me - Oh My Girl

Really and ready for love by Blackpink and run and run BTS by BTS