“Come Back and Back” Song: nissi's 'Wyw my sweetie' Topped Shazam in Korea

The song behind the “come back and back” dance clips is 'Wyw my sweetie #JerseyClub', credited to nissi and 25Hzz. It came out on 28 August 2026 on VBR as a four-track EP: the original, 1 minute 20 seconds long, then Slowed, Super Slowed and Ultra Slowed versions that stretch it to 1:35, 1:47 and 1:55. The slowed one took off first.

Many people look for it by the hook instead of the name, and some type the title as 'www my sweetie'. Google's suggestions for “come back and back” song run to 'name', 'tiktok', 'kpop', 'original' and 'singer', because the hook is the part people can make out. The label has noticed: three of its YouTube uploads of the slowed version, posted on 5, 19 and 23 October, are titled 'Comeback and back #JerseyClub'.

Shazam, where people go when a song plays and they cannot place it, shows how far it has travelled in three weeks. Our 2 October reading found it in the top 100 of 12 countries. By 24 October it was in 49 of the 70 we read, and in the top 10 of six: South Korea 3, Singapore 5, Vietnam 7, Malaysia and the Philippines 8, Thailand 9. On 11 October it led the South Korean chart outright. Searches that add 'kpop' will not find a K-pop act in the credits, only nissi and 25Hzz.

Why 'Wyw my sweetie' is called the “come back and back” song

Nothing official spells out 'Wyw'. Apple Music, Spotify and the descriptions on VBR's videos give the title and the two names and stop there. Listeners go by the words they hear instead. Our speech model, run over the 80-second original, picked out 'sweet' 11 times between 0:14 and 0:57 and 'back' six times between 0:27 and 0:55. The phrase the dance is built on is “Come back and back”, repeated with “my sweet thing” answering it.

The label has published no lyric. The version users posted to LRCLIB, an open lyric database, reads like a note left in an empty kitchen. A chair still sits by the window and a spoon is still in the sink; small things keep bringing back someone's smile, and then comes the plea for that person to return. It is a song about missing someone, cut down to a hook short enough for a dance to loop.

Who sings 'Wyw my sweetie', and is it an AI song?

No singer is credited, and some of the label's own uploads carry an AI label. VBR's upload of the slowed version, posted on 1 October and at 2.7 million views when we checked, shows YouTube's 'Made with AI' panel, worded “Sounds or visuals were altered or fully generated.” So do the label's upload of the original from 14 October and one of the three 'Comeback and back' uploads. The panel appears when an uploader declares realistic content made or changed with AI, and YouTube can also attach it without being asked.

The flag is patchy. We checked every upload on VBR's channel, 42 videos and 56 Shorts: nine of the videos carry it and none of the Shorts. Of the 17 uploads of nissi's songs, six of them Shorts, three carry it. The label's first upload of the original, from 25 September and with 649,260 views, does not, though it carries the same 80-second track. And the panel never says whether it means the sound or the picture.

Apple Music, Spotify and YouTube credit only nissi and 25Hzz, and neither has published a word about themselves. nissi puts out records at a beat channel's pace: 17 #JerseyClub singles and EPs carrying nissi's name came out on Apple Music between 20 April and 23 October 2026, about one every eleven days.

Other acts we have written about disclosed more. Bjorn Bonebreaker showed the same panel on 33 of 39 long uploads when we looked on 8 October, and MEOMURU states in each single's notes that Suno AI made the vocals. nissi, 25Hzz and VBR have said nothing at all. Until nissi or VBR does, treat the voice as possibly generated: no singer is credited, and YouTube shows its AI panel on some of the label's own uploads of the song.

nissi's 'Wyw my sweetie' at 144 beats per minute, slowed to about 122

By our measurement the original runs at about 144 BPM in D sharp minor. Its loudness rises once and stays up: the first 12 seconds are quiet, everything after sits near full level. That shape suits a 15-second clip, which never has to wait for a build. The slowed version runs 14.2 seconds longer. If it is the same recording slowed evenly, as the lengths suggest, it moves at about 122 beats per minute, closer to a strut than a jersey club sprint.

Where the “come back and back” dance is spreading after Korea

Streams are smaller than the Shazam map suggests. On Spotify's daily charts for 22 October, the latest kworb.net has, the slowed version is on four of the 72 national charts: Singapore 73, the United Arab Emirates 149, Saudi Arabia 158 and Malaysia 173. YouTube's Shorts charts, published for 22 countries, show the dance only in the West. On the daily charts for 22 October the slowed version had spent 8 to 12 days in the United States (31), Canada (30), Australia (33), the UK (36), Germany (43) and France (43), and the original had joined it in all six within the last three days, already above it in Australia (20), the UK (28), Germany (34) and France (38). It is on none of the Shorts charts for South Korea, Japan, Indonesia, the Philippines, Thailand or Vietnam. On YouTube's weekly song charts dated 15 October, the newest on the site, it entered at 66 in Singapore, 83 in New Zealand and 90 in Malaysia.

In South Korea the song may already have peaked; elsewhere it is still arriving. Korea's Shazam has had it between No. 1 and No. 3 since 7 October, while the worldwide count has held at 47 to 49 countries for a week and the original version is only now joining the slowed one on Western Shorts charts. Korea and the rest of the map should now go opposite ways. We expect that on 14 November, or at our first Shazam reading after that date, 'Wyw my sweetie' will be out of South Korea's top 10 and in the top 100 of more than 49 countries.