The number one and two songs on the Billboard K-Pop Hot 100 remain the same as last week: "Bom Bom Bom" by Roy Kim and Cho Yong Pil's "Bounce," respectively.

Other than that, there are major changes in the top five.

The members of 4minute have sneered their way into the number three spot with the attitude-laced "What's Your Name?" up three places from its debut last week at number six.

And in what is perhaps the most surprising development on the Billboard K-pop Hot 100 this week, the SECRET song "Yoo Hoo" has jumped into the number four slot after debuting at number 31 two weeks ago.

SECRET bandmates Hyoseong and Jieun will surely be even more upbeat than usual when they appear on Thursday as hosts of the South Korean music program "Mnet M COUNTDOWN," in light of their chart burning success this week.

And rounding out Billboard's K-pop top 5 is VIBE's "For The Last Time," debuting at number five.

There was one disappointing development for chart-watching fans of Psy.

Although "Gentleman" continues to rack up the YouTube views, it fell to number six on Billboard's K-pop singles chart, the King of K-pop is down two places from last week.

After debuting at number one a month ago, "Gentleman" has continued to slip on the charts. Its current position at number six is as low as it has been on the Billboard K-Pop Hot 100.

Other chart topping debuts from this week's K-Pop Hot 100 include Youn ha's "The Real Reason We Broke Up," which enters the chart at the number eight position, "You And I" performed by Yoo Seung Woo," premiering at number 10 and Lee Hyori's "Miss Korea," which debuted at number 11.

"Miss Korea," which has already secured the number one spot on most of Korea's music charts, is the singer's first release in three years.

On Tuesday, Hyori's record label B2M Entertainment announced plans for a concert to be taped next week and broadcast on May 22, according to the website allkpop.

"The staff of cable channel 'Mnet' have set a date for the [tentatively titled] 'Lee Hyori Comeback Show' for the 22nd," read a B2M Entertainment statement.

"We are currently discussing the specific details concerning the show and the filming schedule. Through this comeback show, Lee Hyori will begin her broadcast activities for her fifth album."

On Monday, Hyori took to Twitter to express her gratitude to the fans.

"I'm so happy because I only managed to get to number one with the interest and support of everyone," tweeted the singer, whose 34th birthday is Friday.

"To be honest, I was really nervous and now I've gained strength...I think I will be able to practice today a little happier. Thank you, really."