South Korean girl group Red Velvet had two music videos pass 100 million views on YouTube this week.

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The K-pop group celebrated on Twitter after reaching 100 million views on YouTube for the fourth and fifth time.

Red Velvet achieved the milestone Sunday with its video for "Peek-a-Boo." The single appears on the group's second studio album, Perfect Velvet, which debuted in November.

"Red Velvet '(Peek-A Boo)' MV 100 million YouTube views," the group tweeted Sunday.

Red Velvet reached 100 million views again Monday with its video for "Red Flavor." The song hails from the group's EP The Red Summer, which was released in July 2017.

"Red Velvet '(Red Flavor)' MV also passes 100 million YouTube views," the group wrote Monday.

Red Velvet previously passed 100 million views with its videos for "Russian Roulette," "Dumb Dumb" and "Bad Boy." The group last released the EP Summer Magic in August.