Background: Bernard Mathew Leadon III (pronounced led-un; born July 19, 1947) is an American musician and songwriter, best known as a founding member of the Eagles. Prior to the Eagles, he was a member of three pioneering and highly influential country rock bands: Hearts & Flowers, Dillard & Clark, and the Flying Burrito Brothers. He is a multi-instrumentalist (guitar, banjo, mandolin, steel guitar, dobro) coming from a bluegrass background. He introduced elements of this music to a mainstream audience during his tenure with the Eagles.
Context: Leadon was the last original member to join the Eagles, a band initially formed by guitarist/singer Glenn Frey, drummer/singer Don Henley, and former Poco bassist/singer Randy Meisner. Leadon is often credited with helping shape the band's early country-rock sound, bringing his strong sense of harmony as well as his country, bluegrass and acoustic sensibilities to the group. Instruments he played during his tenure in the band were electric guitar, B-Bender, acoustic guitar, banjo, mandolin, dobro and pedal steel guitar. Upon the release of their debut album, Eagles, the group met with near instantaneous success, due largely to the strength of their hit singles, "Take It Easy", "Peaceful Easy Feeling" and "Witchy Woman" (co-written by Leadon and Henley), all of which highlighted Leadon's multi-instrumental talent on electric guitar, B-Bender, banjo, and harmony vocals. Their follow-up, Desperado, was another strong country-rock venture highlighted by the classics "Tequila Sunrise" and the title track. Leadon had a prominent role on the album, but it was met by surprisingly lukewarm reviews and lackluster sales. As a result, the band attempted to distance itself from the "country rock" label for their third album On the Border. In doing so, Leadon encouraged the group to recruit his old friend, guitarist Don Felder, to the band. The result was the guitar-heavy top ten hit "Already Gone". The album also included "My Man", Leadon's touching tribute to his old bandmate and friend, Gram Parsons, who had died of a drug overdose the year prior at Joshua Tree National Monument in southeastern California. With the wild success of On the Border and its follow-up smash, One of These Nights, tension within the band grew, as Leadon grew increasingly frustrated by the band's direction away from his beloved country and bluegrass and toward album-oriented stadium rock. He famously quit the band in 1975 by pouring a beer over Glenn Frey's head. He later cited a need to get healthy and break the vicious cycle of touring, recording and heavy drug use that was rampant within the band. Upon his departure, Asylum Records released Their Greatest Hits (1971-1975), which highlighted the band's Leadon years and went on to become the biggest-selling album of all time for sales in excess of 42 million units, awarded to the band members by the RIAA. He was replaced by former James Gang guitarist/singer, Joe Walsh. Although it has long been believed that he left because he was dissatisfied with the band moving into rock and roll, Leadon denies it and said in 2013: "That's an oversimplification; it implies that I had no interest in rock or blues or anything but country rock. That's just not the case. I didn't just play Fender Telecaster. I played a Gibson Les Paul and I enjoyed rock & roll. That's evident from the early albums."
Question: what did he have to do with eagles?
Answer: Leadon was the last original member to join the Eagles,

Background: Girls' Generation (Hangul: sonyeosidae; RR: Sonyeo Sidae), also known as SNSD, is a South Korean girl group formed by S.M. Entertainment. The group is composed of eight members: Taeyeon, Sunny, Tiffany, Hyoyeon, Yuri, Sooyoung, Yoona and Seohyun. Originally a nine-piece group, Jessica later departed from the group in September 2014. Girls' Generation debuted in 2007 with their Korean eponymous debut album.
Context: Girls' Generation announced the single "Catch Me If You Can", their first release as an eight-member group, in March 2015. It was recorded in both Korean and Japanese; the Korean version was released worldwide on April 10, while the Japanese version was released on April 22, 2015. It peaked at number nineteen on the Gaon Digital Chart and number eight on the Oricon Singles Chart. Girls' Generation revealed the cover artwork of their fifth Korean studio album Lion Heart on August 12, 2015. It was subsequently released by S.M. Entertainment on August 19, 2015. The album peaked atop the Gaon Album Chart, and at number eleven on the Oricon Albums Chart. Lion Heart was the thirteenth best-selling album of 2015 in South Korea, with sales figures standing at 145,044 units. Lion Heart produced three singles--the first being "Party", which was released in July 2015. It peaked atop the Gaon Digital Chart, at number ten on the Japan Hot 100, and number four on Billboard's World Digital Songs. Following the release of "Party", Girls' Generation appeared on the Billboard Social 50 at number forty-four on August 1, 2015. The following week, the group's position on the chart rose to number twenty-two. The follow-up singles "Lion Heart" and "You Think" were made available in conjunction with the release of the album. They charted at numbers four and thirty on the Gaon Digital Chart, respectively. To promote the album, the group starred in a South Korean reality television program titled Channel Girls' Generation. They further embarked on their fourth concert tour, Girls' Generation's Phantasia, which started on November 21, 2015 in Seoul. With this achievement, Girls' Generation became the first South Korean girl group to hold a fourth concert tour. The group also concurrently embarked on their 4th Japan Tour, which commenced on December 12, 2015 at Nagoya. By year-end, the Gaon Music Chart announced that Girls' Generation was the most successful girl group of South Korea for 2015. With the release of their Lion Heart album along with two other albums, by subgroup TTS and member Taeyeon, they together sold over 398,000 physical copies. The group was on a hiatus for the most part of 2016. However, to commemorate the group's ninth debut anniversary, in August 2016, a single titled "Sailing (0805)" was released. The lyrics were written by member Sooyoung, highlighting the relationship between the group and their fans.
Question: Was there any other singles that hit charts in 2015?
Answer:
Lion Heart" and "You Think" were made available in conjunction with the release of the album. They charted at numbers four and thirty on the Gaon Digital Chart,