Matching length of music

I’m new to audacity and starting a podcast series and I’m using royalty free music for now.
The music is often 3 to 4 minutes long and my recording is about 30 minutes. Please how do I stretch the music to be the same length with my recording? Thank you

What do you want to do? Do you want to repeat the song?

…If you slow-down the tempo, it’s going to sound terrible. :wink:

I don’t know what to do…