How to make a mashup in FL Studio (the basics)

How I make a mashup in FL Studio. This is my first time making something like this, so feel free to let me know about all the ways it sucked. If you're not interested in this don't worry, more of my usual stuff is coming soon!

If you'd like to throw some change in my guitar case you can donate here: ko-fi.com/groboclone

0:00 Finding song stems
1:28 Finding the tempo of your songs
2:10 Aligning your instrumental with the grid
3:13 Stretching the vocal to match the tempo of the instrumental
4:11 Finding and matching the keys of your songs
6:28 Making detailed timing adjustments
9:15 Putting effects on the vocal to make it blend better with the instrumental
11:28 The completed mashup + brief notes on song structure

'I Am A Lady Bug' by Geoff Peters is available under the CC BY 3.0 license creativecommons.org/licenses/by/3.0/
ccmixter.org/files/geoffpeters/58373

If you want to try this out but don't want to fork out for a DAW like FL Studio, here's a list
of free DAWs, most of which I imagine will be capable of these same things producelikeapro.com/blog/free-daws-best-availab…

Resources:
songbpm.com/
all8.com/tools/bpm.htm
inwhatkey.com/
bit.ly/2RQFTXX (A list of some of the multitracks that are out there somewhere)
phonicmind.com/ (Not mentioned in the video but this is a vocal remover you can try if you want to make a DIY. It doesn't work perfectly, but you can preview the result before deciding to purchase. Not a sponsor.)