During the third show of BTS' Permission to Dance Onstage offline concert, Taehyung surprised the Army by donning the iconic Squid Game costume. He dressed up in a red uniform from the popular Netflix show.In the hours that followed, "Who are you" started trending on Twitter as fans questioned the person's identity in the costume. Subsequently, fans found and shared many pictures of the star in the outfit on various social networking sites.방탄소년단@BTS_twt태형1:11 AM · Dec 4, 20211483089391696태형Taehyung responds to Army's query on TwitterWhat Army hadn't expected was a response from Taehyung to their query. The official BTS handle on Twitter tweeted, "Taehyung," written in Hangul. Fans were thrilled to learn this information.Like in the show, the star appeared in red with a helmet that featured a square sign. V went wild in the costume and his energy on stage was infectious. He showed fans his hype dance moves and microphone flips amid chaotic energy.anam⁷ ☾ jin day! 🌙@sugarintaesquid game taehyung won’t leave my mind3:33 AM · Dec 5, 202124661squid game taehyung won’t leave my mind https://t.co/0jjg954HGz𝗰𝗼𝗺𝗽𝗹𝗲𝘁𝗲𝗱 𝘁𝗮𝗲𝗸𝗼𝗼𝗸 𝗮𝘂𝘀@jeonstaebearJUNGKOOK GIGGLE BECAUSE OF SQUID GAME TAEHYUNG#TAEKOOK #VKOOK #KOOKV 11:45 AM · Dec 2, 20213954940JUNGKOOK GIGGLE BECAUSE OF SQUID GAME TAEHYUNG#TAEKOOK #VKOOK #KOOKV https://t.co/0STlqRd7EGrosy⁷@rosy_w_bts@BTS_twt when locals ask who’s that hot guy in the squid game costume going viral on tiktok:1:23 AM · Dec 4, 2021300472763@BTS_twt when locals ask who’s that hot guy in the squid game costume going viral on tiktok: https://t.co/ip0rxXH86qalex⁷ jin day@TAEONYSUS_7@BTS_twt OMG1:11 AM · Dec 4, 20213959139@BTS_twt OMG https://t.co/RRW3UuAfOSLily@lily_bangtan_Who are you?? It's taehyung1:41 AM · Dec 4, 2021441008395Who are you?? It's taehyung https://t.co/phkdu8NwNEAdiii⁷ 🐥💛@rosedagger1395He saw us asking "WHO ARE YOU" 😭😭😭😭😭😭😭 twitter.com/BTS_twt/status…방탄소년단@BTS_twt태형1:15 AM · Dec 4, 202172798태형He saw us asking "WHO ARE YOU" 😭😭😭😭😭😭😭 twitter.com/BTS_twt/status…We don't need permission to dance⁷⭐@CristelPaniagu1@lily_bangtan_ @kimbapkookie_ I have one question! Voo isn't a nickname Jin gave Tae? I want ro know if that is true. Please, someone tell me. 😩12:09 PM · Dec 5, 20212@lily_bangtan_ @kimbapkookie_ I have one question! Voo isn't a nickname Jin gave Tae? I want ro know if that is true. Please, someone tell me. 😩Zainabu ⁷ RM@ZainabuSulaiman@CristelPaniagu1 @lily_bangtan_ @kimbapkookie_ It is, that's how Jin calls V12:29 PM · Dec 5, 202115@CristelPaniagu1 @lily_bangtan_ @kimbapkookie_ It is, that's how Jin calls Vʕ·ᴥ·ʔ⁷ |TAEcember♡@hana_dul_set__@lily_bangtan_ Their love language7:13 AM · Dec 4, 20211942@lily_bangtan_ Their love language https://t.co/dfLUu50NObDuring and after the concert, Squid Game and Taehyung began to trend worldwide. Photos and videos of the idol have since been shared on Twitter.The hype was real even as the official Netflix handle on Twitter responded to V's costume.Netflix@netflixWhile V should never really wear a mask, I am living for this BTS x Squid Game mashup1:33 AM · Dec 3, 202126453463491While V should never really wear a mask, I am living for this BTS x Squid Game mashupNetflix Geeked@NetflixGeeked@netflix i just wanna know if RM's red hair + suit combo is a reference to gi-hun or not2:15 AM · Dec 3, 2021185142196@netflix i just wanna know if RM's red hair + suit combo is a reference to gi-hun or notNetflix@netflix@NetflixGeeked INQUIRING MINDS!2:16 AM · Dec 3, 20218735471@NetflixGeeked INQUIRING MINDS!In response to Netflix's tweet, one fan asked if RM's red hair and suit combination was a reference to Gi-hun.V is not the first to make a Squid Game reference, though. Jin, dressed up as a giant-sized doll from the first episode of Squid Game after the first show of Permission to Dance Onstage offline concert.BTS has been busy for the past couple of weeks. The band made history after its victory at the American Music Awards 2021 in four major categories. They also were nominated for a Grammy, after which the members -- RM, Suga, J-hope, Jin, Jimin, Taehyung and Jungkook -- performed at the Crossway Concert in LA.After wrapping up their four-part concert in LA, the band also took part in Jingle Ball 2021.