A subscription is a feature whereby one receives the latest additions to a YouTube user's videos, a YouTube tag, a YouTube search term or a YouTube playlist. There are two types of subscribing to videos:
- clicking the yellow "subscribe" button at either the top right or top left of the page
- going to "my subscriptions" and entering a tag or two to the search box that says "Subscribe to Tags", and hitting subscribe.
A user cannot subscribe to another user's subscriptions, as those are kept private.
RSS
The above is separate from subscribing to an RSS feed which syndicates YouTube videos to applications and websites outside the site. One can syndicate user playlist subscriptions as an RSS feed, however.
Channels by Subscription
The following is a chart featuring a list of the 100 most subscribed YouTube channels, including VEVO chanels (Updated on March 27, 2017).
| Rank | Channel | Subscriber Count |
|---|---|---|
| 1 | Music | 96.784 million |
| 2 | Gaming | 77.718 million |
| 3 | Sports | 75.586 million |
| 4 | PewDiePie | 54.430 million |
| 5 | Movies | 46.324 million |
| 6 | News | 33.808 million |
| 7 | HolaSoyGerman. | 31.334 million |
| 8 | Popular on YouTube | 29.663 million |
| 9 | JustinBieberVEVO | 28.016 million |
| 10 | YouTube Spotlight | 25.530 million |
| 11 | RihannaVEVO | 24.369 million |
| 12 | elrubiusOMG | 23.726 million |
| 13 | Smosh | 22.609 million |
| 14 | TaylorSwiftVEVO | 21.799 million |
| 15 | OneDirectionVEVO | 21.752 million |
| 16 | KatyPerryVEVO | 21.645 million |
| 17 | EminemVEVO | 21.428 million |
| 18 | Fernanfloo | 20.563 million |
| 19 | VanossGaming | 20.288 million |
| 20 | nigahiga | 19.417 million |
| 21 | TheEllenShow | 19.281 million |
| 22 | JuegaGerman | 18.332 million |
| 23 | whinderssonnunes | 18.312 million |
| 24 | Yuya | 17.906 million |
| 25 | VEGETTA777 | 17.473 million |
| 26 | T-Series | 17.161 million |
| 27 | JennaMarbles | 17.076 million |
| 28 | Markiplier | 16.949 million |
| 29 | Spinnin' Records | 16.721 million |
| 30 | Dude Perfect | 16.458 million |
| 31 | ArianaGrandeVevo | 16.067 million |
| 32 | KSI | 16.047 million |
| 33 | Skrillex | 15.387 million |
| 34 | FBE | 15.093 million |
| 35 | WWE | 15.059 million |
| 36 | jacksepticeye | 15.001 million |
| 37 | DanTDM | 14.611 million |
| 38 | Ed Sheeran | 14.374 million |
| 39 | AdeleVEVO | 14.346 million |
| 40 | ERB | 14.200 million |
| 41 | WatchMojo.com | 14.116 million |
| 42 | Bruno Mars | 13.806 million |
| 43 | Vevo | 13.601 million |
| 44 | enchufetv | 13.596 million |
| 45 | The Tonight Show Starring Jimmy Fallon | 13.348 million |
| 46 | David Guetta | 13.236 million |
| 47 | Porta dos Fundos | 13.091 million |
| 48 | Werevertumorro | 13.028 million |
| 49 | Pop Music - Topic | 12.959 million |
| 50 | Maroon5VEVO | 12.944 million |
| 51 | PTXofficial | 12,943 million |
| 52 | Trap Nation | 12.925 million |
| 53 | shakiraVEVO | 12.872 million |
| 54 | Machinima | 12.621 million |
| 55 | FailArmy | 12.376 million |
| 56 | CanalCanalha | 12.168 million |
| 57 | BuzzFeedVideo | 12.033 million |
| 58 | Good Mythical Morning | 12.017 million |
| 59 | Sky Does Minecraft | 12.006 million |
| 60 | RomanAtwoodVlogs | 11.964 million |
| 61 | beyonceVEVO | 11.922 million |
| 62 | Canal KondZilla | 11.900 million |
| 63 | SelenaGomezVEVO | 11.881 million |
| 64 | Vsauce | 11.850 million |
| 65 | NickiMinajAtVEVO | 11.819 million |
| 66 | Zoella | 11.680 million |
| 67 | TheWillyrex | 11.626 million |
| 68 | CollegeHumor | 11.622 million |
| 69 | Rclbeauty101 | 11.488 million |
| 70 | TV Shows | 11.383 million |
| 71 | IISuperwomanII | 11.288 million |
| 72 | EeOneGuy | 11.234 million |
| 73 | PopularMMOs | 11.145 million |
| 74 | rezendeevil | 11.118 million |
| 75 | Movieclips Trailers | 10.810 million |
| 76 | CalvinHarrisVEVO | 10.717 million |
| 77 | SET India | 10.716 million |
| 78 | Wiz Khalifa | 10.614 million |
| 79 | DrossRotzank | 10.593 million |
| 80 | Cyprien | 10.538 million |
| 81 | Get Movies | 10.496 million |
| 82 | Ray William Johnson | 10.409 million |
| 83 | Hip Hop Music - Topic | 10.402 million |
| 84 | NoCopyrightSounds | 10.382 million |
| 85 | RomanAtwood | 10.374 million |
| 86 | Bethany Mota | 10.345 million |
| 87 | PrankvsPrank | 10.312 million |
| 88 | 5incominutos | 10.309 million |
| 89 | AviciiOfficialVEVO | 10.252 million |
| 90 | #Education | 10.220 million |
| 91 | SMTOWN | 10.097 million |
| 92 | EnriqueIglesiasVEVO | 10.082 million |
| 93 | ChrisBrownVEVO | 10.070 million |
| 94 | LittleBabyBum | 10.030 million |
| 95 | DemiLovatoVEVO | 9.995 million |
| 96 | TheSyndicateProject | 9.982 million |
| 97 | The Late Late Show with James Corden | 9.967 million |
| 98 | CaptainSparklez | 9.868 million |
| 99 | W2S | 9.862 million |
| 100 | fouseyTUBE | 9.838 million |