The Inkigayo Chart is a music program record chart that gives an award to the best-performing single of the week in South Korea. Up until February 1, 2015, the chart measured digital performance in domestic online music services (6,000 points), social media via YouTube views (3,500 points), and advanced viewer votes (500 points) in its ranking methodology. The candidates for the number-one song of the week received additional points from live votes (1,000 points). Beginning on February 8, Inkigayo implemented modifications for its measurements of digital performance (down to 5,500 points) and added album sales (500 points). Songs that spend three weeks at number one are awarded a Triple Crown and are removed from the chart and ineligible to win again. The show was hosted by five different people across the whole year. Hwang Kwang-hee, Kim Yoo-jung and Hong Jong-hyun had hosted the show together since December 28, 2014. Kwang-hee was replaced by Jackson Wang starting with the April 12 broadcast while Jong-hyun left the show on August 30. On September 13, Yook Sung-jae joined the show as a host alongside Yoo-jung and Wang.

In 2015, there were 34 singles that ranked number one on the chart and 23 music acts received award trophies for this feat. Boy group BigBang had four number one singles on the chart, the most of any act in 2015: "Loser", "Bang Bang Bang", "Sober" and "Let's Not Fall in Love". The latter achieved a perfect score of 11,000 points on the August 23 broadcast, making it the single with the highest points of the year. The four songs spent a total of eight weeks atop the chart, helping BigBang become the act with the most wins of the year. Their single "Loser" spent three weeks on the chart and achieved a triple crown. Their sub-unit GD X Taeyang's "Good Boy" was the first winner of the year. Exo achieved the first triple crown of the year in April with their single "Call Me Baby". They would go on to rank number one again with "Love Me Right" in June. Girl group Girls' Generation also achieved a triple crown with "Lion Heart". Prior to that their single "Party" ranked number one for two consecutive weeks in July. The single helped the group achieve their 100th music show award on another TV show, Music Bank, becoming the first artists to do so in South Korean music show history. Member Taeyeon ranked number one for the first time on the chart with her debut single "I" which went on to achieve a triple crown. The last triple crown of the year was achieved by Psy with his single "Daddy".

Besides Taeyeon, five other solo artists achieved their first number one on Inkigayo in 2015. Rapper Mad Clown received his first win on the program with "Fire". Other first-time Inkigayo winners as soloists include Jonghyun's "Déjà-Boo", Jung Yong-hwa's "One Fine Day", Naul's "You from the Same Time", and Zico's "Boys and Girls". Girl group EXID won its first Inkigayo award with "Up & Down" over four months after its release after a fan-recorded video of member Hani performing the song went viral on South Korean social networking websites. EXID topped the chart with two other singles in 2015: "Ah Yeah" and "Hot Pink". Girl group Red Velvet achieved their first award on Inkigayo with "Ice Cream Cake" from their debut extended play of the same name. Their single "Dumb Dumb" went go on to debut at number one on the chart on September 20 broadcast. Boy group iKon achieved their first number one on the chart with "My Type" in September and went on to achieve another number one in November with "Apology".

Chart history

Key

†	Indicates the song achieved a Triple Crown
‡	Indicates the highest score of the year
—	No show was held

Chart history

Episode	Date	Artist	Song	Points	Ref.
797	January 4	GD X Taeyang	"Good Boy"	8,136
798	January 11	EXID	"Up & Down"	8,346
799	January 18	Jonghyun	"Déjà-Boo"	8,218
800	January 25	Mad Clown	"Fire"	9,286
801	February 1	Jung Yong-hwa	"One Fine Day"	8,106
802	February 8	Infinite H	"Pretty"	9,408
803	February 15	Naul	"You from the Same Time"	8,525
—	February 22	4Minute	"Crazy"	7,526
804	March 1			7,975
805	March 8	VIXX	"Love Equation"	9,632
806	March 15	Shinhwa	"Sniper"	7,708
807	March 22			7,902
808	March 29	Red Velvet	"Ice Cream Cake"	8,504
809	April 5	Exo	"Call Me Baby" †	10,000
810	April 12			9,717
811	April 19			10,051
812	April 26	EXID	"Ah Yeah"	9,387
813	May 3			9,333
814	May 10	BigBang	"Loser" †	10,909
815	May 17			10,594
816	May 24			10,127
817	May 31	Shinee	"View"	9,741
818	June 7			10,850
819	June 14	BigBang	"Bang Bang Bang"	9,029
820	June 21	Exo	"Love Me Right"	9,308
821	June 28	BigBang	"Bang Bang Bang"	9,981
822	July 5	Sistar	"Shake It"	9,583
823	July 12	BigBang	"Sober"	9,189
824	July 19	Girls' Generation	"Party"	10,229
825	July 26			8,481
826	August 2	Beast	"Gotta Go to Work"	7,470
827	August 9		"YeY"	7,154
828	August 16	BigBang	"Let's Not Fall in Love"	9,000
829	August 23			11,000 ‡
830	August 30	Girls' Generation	"Lion Heart" †	9,561
831	September 6			10,520
832	September 13			10,372
833	September 20	Red Velvet	"Dumb Dumb"	10,651
834	September 27	iKon	"My Type"	9,273
835	October 4			9,160
—	October 11	Im Chang-jung	"Love Again"	6,437
836	October 18	Taeyeon	"I" †	10,140
837	October 25			8,454
838	November 1	IU	"Twenty-Three"	8,208
839	November 8			9,514
840	November 15	Zico	"Boys and Girls"	7,777
—	November 22	Taeyeon	"I" †	6,627
841	November 29	iKon	"Apology"	8,301
842	December 6	EXID	"Hot Pink"	8,331
843	December 13	Psy	"Daddy" †	9,077
844	December 20			8,460
—	December 27			6,382

See also

• List of M Countdown Chart winners (2015)
• List of Music Bank Chart winners (2015)
• List of Show! Music Core Chart winners (2015)