As a whole group, Super Junior has released two studio albums and one single, including contributions of songs in the soundtracks of H.I.T and Attack on the Pin-Up Boys. The majority of their music falls into the category of mainstream K-pop. Songs of this genre are usually a mixture of other genres such as urban contemporary, dance pop, and rap, which all can be heard in their 2006 comeback single, "U". Super Junior is also notable for their light-hearted, bubblegum pop songs, including "Miracle" and "Sapphire Blue." With the release of Super Junior's second album, the group has showed a slight change in music style. The album's first single, "Don't Don," is Super Junior's first SMP project, and the group has since been releasing other similar titles. The song includes an infusion of rock, R&B, and rap, along with other musical elements like the electric guitar, bass, and different percussion instruments. Classical instruments are also woven into their music, such as the violin in "Don't Don" and the African djemba and Indian tabla in "A Man In Love." They have also released songs that are solely focused on rap and hip hop. An example is "One Love", a song that Eunhyuk wrote for their first concert.

Super Junior has covered quite a few song in their albums. Their debut single, "TWINS (Knock Out)" is a cover of Triple Eight's "Knockout," which was released in 2003. While the musical style is mostly maintained as the original, "TWINS (Knock Out)" touches closer to rap rock, with quicker rap and more emphasis on the bass instruments. In most covers, the original titles are kept. Examples include Cape's "L.O.V.E" and Exile's "Believe." However, most of them are re-arranged with different accompaniments, such as H.O.T's "Full of Happiness." (행복)

Heechul, Shindong, and Eunhyuk are credited for their rap lyrics in their co-single with TVXQ, "Show Me Your Love". Eunhyuk is also the main contributor for the rap lyrics in the group's single, "U". After the release of their second album, Don't Don, more members began to contribute in writing. Leeteuk, Sungmin, Eunhyuk, and Donghae wrote the lyrics to the pop track, "I am," a song talking about the ordinary man in a celebrity's life. Eunhyuk remains as one of the main writers for most of Super Junior's rap lyrics in the second album.


IMAGE

Super Junior frequently changes their image with each musical release. Super Junior's debut image softly leaned towards a rock appearance to complement the single, "Twins (Knock Out)." During their promotion of "Miracle," many of the members displayed a youthful and cute image with their lighter hair color and funny dance style. The group soon transitioned to a more mature, preppy style with "U", where the members changed their hair to a darker color and wore darker, more flamboyant outfits.

With the release of Don't Don, the group surprised the media with an edgy transformation. Some members bleached their hair, wore dark makeup, and had temporary tattoos . Kang-in had a hairstyle that was a buzz cut with scratched designs, Sungmin's hair was bleached blond and half shaved, while Heechul, Han Geng, and Kyuhyun sported with bright-colored hairstyles, which were all inspired by punk fashion, as well as modifications of hip hop fashion. Their outfits were also thinner. However the group's image was quickly changed back to a more classic image as promotions began for their ballad single, "Marry U."


DANCE STYLE

Super Junior has done performances centered heavily around their choreography. The group's pre-debut appearance was a hip hop dance performance and they have also joined B-boy battles and performances throughout their career.

Their dance styles are widely termed as street dancing, with a majority of their dance choreography containing hip hop dance moves such as popping, waving, sliding, and liquid dancing. Most of their songs usually contain a music bridge where two to six members from the group do a dance performance. Han Geng, Shindong, Eunhyuk, and Donghae are reportedly the most skilled dancers of the group, where the four of them are usually seen leading group dances and also performing solos. Dances in a form of martial arts are widely used in their dance routines as both Han Geng and Sungmin are professionally trained in that area. Some of the members also participated in creating their dance choreography, such as Shindong who was the main choreographer for "U" and for most of the group's other dance sequences. The members were also responsible for the dance choreography of their comeback single, "Don't Don."


ABILITY AND CRITICISM

Despite being a large thirteen member boy band with the members having a variety of different vocal ranges, Super Junior are often praised for their vocal harmonization and unison. Some members are credited for their vocal belting techniques, notably Yesung. Leeteuk, Heechul, Han Geng, Sungmin, Donghae, and Ryeowook sing within the stretch of a high baritone range to the tenor range, while Kang-in, and Siwon sing in a lower baritone range. Shindong's, Kibum's, and Kyuhyun's vocals lie in the bass range. Shindong, Eunhyuk, and Kibum are also the known rappers of the group due to their rhythmic vocals and quick tongue. Heechul and Donghae consistently rap as the supporting vocals.

Super Junior has been criticized in the past for lip-synching and lack of vocal skills, specifically for shaky pitch and heavy breathing. The criticisms worsened in July 2006 when they lipsynched on Show! Music Core of MBC, a show that guarantees all live performances. Though fans have defended them saying that Heechul was ill, their critics do not accept this explanation. They argue that since the band contains thirteen members, one ill singer should not necessitate lipsynching by the entire group. Despite this, they have still remained popular through their large fan base and their album sales have been strong. Pushing back the criticism, Super Junior's second album comeback performance, "Don't Don," was a live performance instead of lipsyched. Out of the thirty-some songs that were performed at the group's first live concert tour Super Show, only six songs were lipsynched, acclaiming positive reviews for the concert. Some members have also been performing a cappella versions of their songs.