"Guilty Love" and B-side track "365" were first performed on January 3–4, 2015 at 2PM's second fan meeting in Japan, titled New Year’s Party 2015 "Old Boy vs Young Boy", to a total of 40,000 fans at Saitama Super Arena. The single was released on January 28, 2015 in four editions: a regular CD-only edition, two CD + DVD editions, and a LP size jacket limited edition which includes remixes of "Guilty Love" and "365".
Composition
"Guilty Love" is a dance-pop song with heavy funk elements featuring horn instrumentation. The lyrics of the song are from the perspective of a "sinful man" trying to seduce a woman he is attracted to. The B-side track is "365", a composition by 2PM member Junho and a bright pop song with lyrics about the joy of spending each day of the year with a loved one.
Music video
Prior to the release of the single, a short version of the music video for "365" was released on YouTube on December 15, 2014, with the full version being uploaded on January 5, 2015. The music video was filmed in Phuket, Thailand, depicting the group having fun by the water.
The music video for "Guilty Love" features the members wearing various suits, dancing a jazz dance-inspired choreography that primarily focuses on footwork. The music video is set inside of a jukebox. Writer Kaori Simon for Real Sound noted the choreography as "understated yet subtly sensual" due to the group's mature and masculine image.
Promotion
In promotion of the single, 2PM held special shows titled 2PM New Year Live 2015 at Universal Studios Japan on January 10–11, 2015, performing various songs including "Guilty Love" and "365" to a total audience of 12,000 people, their second time performing at the theme park since 2013. The group also appeared on various Japanese television shows to perform "Guilty Love", including the January 26, 2015 and February 1, 2015 episodes of NHK's music program Music Japan[ja].
The group held two "Hi Touch" fan events for the release of the single, one on January 31, 2015 at Intex Osaka, and the second on February 8, 2015 at Makuhari Messe. A pop-up event in collaboration with Sony's Walkman brand took place at the Sony Building in Tokyo from January 27, 2015 to February 24, 2015, in which attendees could listen to "Guilty Love" in high-resolution audio. Additionally, limited edition 2PM-themed models of the Walkman A Series and Walkman S Series were released, pre-installed with high-resolution audio tracks of "Guilty Love and "365", wallpaper designs, the dance version of the "Guilty Love" music video, the making movie of "Guilty Love", and video messages from 2PM members.
Commercial performance
"Guilty Love" debuted at number-one on the Oricon Singles Chart, their second single to accomplish this feat since "Winter Games", and charted for a total of four weeks. The single also became their third single to top the Billboard Japan Hot Albums chart after "Winter Games" and "Midaretemina", charting for a total of 3 weeks. The single was certified Gold by the Recording Industry Association of Japan in the same month as its release for selling over 100,000 copies.
↑"2PM 2015年幕開けは4万人動員のファンミーティング！ 新曲初披露＆アリーナツアーを発表！"[2PM kicks off 2015 with a fan meeting that drew 40,000 people! They premiered a new song and announced an arena tour!]. Astage-アステージ- (in Japanese). January 5, 2015. Retrieved July 30, 2026.
12"2PM、2015年第1弾シングルは大人の色気たっぷりファンク"[2PM's first single of 2015 is a funky track full of mature sexiness.]. 音楽ナタリー (in Japanese). December 1, 2014. Retrieved July 30, 2026.
12"2PM、2015年第1弾の日本シングル発売決定！大人の色気を漂わせた「Guilty Love」で帰ってくる"[2PM to release their first Japanese single of 2015! They're coming back with "Guilty Love," a song exuding mature sexiness.]. Kstyle (in Japanese). December 1, 2014. Retrieved July 30, 2026.
123星野, 彩乃 (January 30, 2015). "2PM、女性のデンジャラスな魅力とは？！"[2PM: What is the dangerous charm of women?!]. Oricon (in Japanese). Retrieved July 30, 2026.
↑西門香, 央里 (February 17, 2020). "2PM「My House」が"チャート逆走"で再注目 改めて考えるグループの強み"[2PM's "My House" Re-emerges on Charts with a "Chart Reversal": Reconsidering the Group's Strengths]. Real Sound｜リアルサウンド (in Japanese). Retrieved July 28, 2026.
↑"12,000人が集結！2PM 2年連続USJスペシャルライブ公式レポートと写真公開！「365」MV"[12,000 people gathered! 2PM's second consecutive USJ special live performance: Official report and photos released! "365" MV]. navicon.jp (in Japanese). January 13, 2015. Retrieved July 30, 2026.
↑"「MJ」公録に安藤裕子、スチャ、家入、三代目、2PM、TRUSTRICK"[Yuko Ando, Schadaraparr, Ieiri, Sandaime J Soul Brothers, 2PM, TRUSTRICK to appear at the public recording of "MJ"]. 音楽ナタリー (in Japanese). January 6, 2015. Retrieved July 30, 2026.
↑"三代目JSB、TRUSTRICK、安藤裕子ら7組が「MJ」登場"[Seven groups, including Sandaime J Soul Brothers, TRUSTRICK, and Yuko Ando, will appear on "MJ"]. 音楽ナタリー (in Japanese). January 26, 2015. Retrieved July 30, 2026.
↑"ウォークマンAシリーズ/Sシリーズ 「2PMモデル」、ソニーストアで限定販売開始。"[Walkman A-series/S-series "2PM models" now available for limited sale at Sony Store.]. Kunkoku (in Japanese). January 27, 2015. Archived from the original on June 7, 2026. Retrieved July 30, 2026.
12"2PM、1年3ヶ月ぶりシングル首位"[2PM tops singles chart for the first time in 1 year and 3 months]. Oricon (in Japanese). February 3, 2015.
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