How to Post One Song to TikTok, Reels and Shorts at Once (and Schedule a Whole Week)

Every short-video app is its own audience with its own algorithm. A promo that does nothing on TikTok can take off on YouTube Shorts a week later. So make each video once and post it everywhere: TikTok, Instagram Reels, YouTube Shorts and Facebook Reels. Seven promos across four apps is 28 chances a week from one song. Here's how to set that up, free with each app's own tools or in one sitting with a scheduler.

Why post the same song everywhere

• Different people. Your TikTok viewers and your YouTube viewers barely overlap.
• Separate tests. Each app tries your video on its own audience. A flop on one tells you nothing about the others.
• Shorts can be searched. A YouTube title with your song and artist name can keep bringing people in for months.
• It costs almost nothing extra. Once the video exists, every extra platform is just an upload and a caption.

Before you start: one clean file, four captions

• No watermarks. Don't save a video from TikTok and re-upload it to Instagram. Instagram has said it shows fewer videos that carry other apps' logos (your own logo is fine). Export a clean file from your editor and use that everywhere.
• Vertical 9:16, 1080×1920, 15–30 seconds. Every app takes it, and for a song promo shorter usually wins.
• Instagram needs a Professional account. To schedule Reels, your Instagram has to be a Business or Creator account linked to a Facebook Page. Switching is free in Instagram's settings.

Then write a caption for each platform. They want slightly different things:

The free way: each app's own scheduler

• TikTok. On a computer, open TikTok Studio, upload the video, write the caption and press Schedule. You can schedule up to 10 days ahead.
• Instagram and Facebook together. In Meta Business Suite, create a Reel, tick both Instagram and Facebook, add the caption and schedule it. One upload covers both.
• YouTube Shorts. In YouTube Studio, upload the vertical video, add the title and description, then pick a date under Visibility → Schedule.

For a week of seven promos that's three tools and about 21 uploads, roughly an hour every week. It works. The hard part is keeping it up for a month.

Plan the week before you schedule it

A simple week from one song with three hooks:

• One post a day per platform is plenty to start.
• Rotate hooks and looks so no two days look alike.
• Keep roughly the same rhythm every day. Consistency beats clever timing.
• After a week, check which hook keeps people watching longest, and build the next week around it. More on that in how to turn one song into 30 short videos.

The one-sitting way: schedule a whole week in SongBlast

1. Make the week. Upload your song and tap Generate one week of promos: seven lyric videos, each on a different hook. (Here's how the lyric videos are made.)
2. Tap Blast them to socials. Every platform is switched on, one promo a day from tomorrow. Change the days and times, or post up to three a day.
3. Write the captions. Auto-Write Captions writes a separate version for each platform in one go: a TikTok caption, an Instagram caption, a YouTube title and description, and a Facebook post. Edit any of them by hand.
4. Choose how the videos go out.
   • Connect your accounts in Settings. YouTube, Instagram and Facebook post by themselves at the scheduled time. TikTok posts arrive in your TikTok inbox at the scheduled time: open TikTok, tap the notification, paste the caption and press Post. The last tap on TikTok is always yours.
   • Or use the phone app. When each post is due you get a notification. Save the video and copy the caption, one tap each, then post it yourself in about 30 seconds.
5. Press Finalize. That's the week planned: 7 promos on 4 platforms, in one sitting.

Native tools vs SongBlast

FAQ

Next up: How to make a lyric video for TikTok · How to turn one song into 30 short videos · How to promote your song on TikTok