Rock-Star (stylized as 樂-STAR) is the eighth Korean-language extended play (thirteenth overall) by South Korean boy band Stray Kids, released on November 10, 2023, through JYP Entertainment and Republic Records, five months after their third studio album 5-Star (2023).

Based on Korean four-character idiom of emotions huiroaerak, 3Racha, an in-house production team of the group, worked on the EP with Versachoi, Cubeatz, Willie Weeks, Millionboy, Nickko Young, and Jun2.

The EP comprises eight tracks, including "Lalalala" as lead single, and the Korean version of "Social Path", featuring Japanese singer-songwriter Lisa.

[8] Narrated by Felix's "calming" and Bang Chan's "manic" and "theatrical" voices, the visual focuses on a boy, a trumpet player of marching band, falling asleep while waiting for a performance, expressing his agitated emotion.

The scenes switches to Stray Kids robbing a bank joyfully alongside a group of clowns, becoming angry pirates on the ship, and looking up at a clock sadly.

As the boy and his bandmates enter the stage, the rock-inspired heavy electric guitar began playing, and Felix and Bang Chan shout "Let's show them how we rock!".

The EP was described as a "powerful album, adding strength and energy to [Stray Kids'] spirit," aiming to "go beyond any evaluation," and showing "the rock star aspect and freedom latenting within [the group],"[15] as well as "our pleasure continues no matter what happen.

[18] EP pre-orders began on the same day as the prologue's release, coming in five editions: limited "Star", and four standards "Rock", "Roll", "Postcard", and "Headliner".

For the lead single "Lalalala", released concurrently with the album, the video expresses clash of inside emotions by Stray Kids and gigantic smoke-like creature attempts to attack a marching band of young boys during performing.

[31][32] The music video of "Megaverse" was released on November 20, showing Stray Kids knock out security guard, starring Yoon Seung-hoon.

[45] SKZflix was officially released as a short film on November 3, featuring two songs from Rock-Star: "Leave" and "Cover Me",[46] and directed by Kim Byeong-june.

[50] Crystal Bell from Teen Vogue described that Rock-Star "finds Stray Kids broadening their creative palette while revisiting their more rebellious roots.

"[51] Dazed named "Cover Me" the 25th best K-pop track of 2023, calling it a "glimmering pearl in the Rock-Star jewellery box, a near-ballad that chronicles being caught in soul-emptying sadness".

[65] In 2024, Rock-Star received gold certifications from Recording Industry Association of America (RIAA),[66] and French Syndicat national de l'édition phonographique.