The group's leader, Jea, was the one responsible of the group's creation and was actively involved in the selection of the other members, picking out Miryo, who was known as a great female rapper from the hip-hop community having previously worked with other fellow rappers, such as Gil Seong-joon from Leessang, and the main female rapper in well-known hip-hop group Honey Family. Narsha was chosen when Jea remembered her as a "talented singer" from her high school days, and Ga-in was selected by the three members after she was eliminated from "Battle Shin Hwa." According to Ga-in, she was crying in the bathroom after failing the audition, was found by composer Ahn Jung Hoon, and then was chosen through the audition in Brown Eyed Girls' company. Singer Yoari trained with the group until 2006, when it was decided she would be the lead singer for Sprinkler. The four members held several small size concerts, and was actually known as "Crescendo" before officially debuting as "Brown Eyed Girls."  After more than 3 years of training in singing and holding several small size concerts, the Brown Eyed Girls released their debut album Your Story in South Korea on March 2, 2006, with the ballad track, "Come Closer" as their single. Debuting as a "faceless group" they did not appear on any visual media and chose to not even appear in their own music video. The album was well received by critics but did not do as well as expected commercially. The album was later re-released to include "Hold The Line" (which samples "Push The Button" by British girl band Sugababes and "Technologic" by Daft Punk). This song became a hit, further boosting the band's popularity. "Hold the Line" was disclosed across the world because it was included in the list of songs from the game Pump it Up.  After a short break, the group went back into the studio to work on their second album Leave Ms. Kim (ddeonara miseugim), which included their R&B title track "You Got Me Fooled" (neoege sogassda). Subsequent singles were "Oasis" (oasiseu) featuring Lee Jae Hoon and "It's Mine" (naeggeoya), a collaboration with fellow group SeeYa.  During the break between their debut and second albums, the Brown Eyed Girls released their first digital single entitled "I Am a Summer" (naega yeoreumida), which was later included in their second LP.  The first two albums contained typical R&B ballads which had been very popular in the K-pop scene. However, the commercial success was relatively higher in two singles between the first and second albums. Moreover, the second album containing "You Got Me Fooled" (neoege sogassda) was released at nearly the same time as Wonder Girls' "Tell Me" which received a nationwide success in Korea. Therefore, their second album was once again a commercial disappointment. At the same time, the general K-pop scene was changing from R&B ballads to dance music.

Answer this question "is there any interesting fact that you found interesting in this article?" by extracting the answer from the text above.
The first two albums contained typical R&B ballads which had been very popular in the K-pop scene. However, the commercial success was relatively higher