I will provide a vocal track for your song

It is common with animations for a character's voice actor to not be a competent singer.
For $5, I will provide the singing vocals for your song, in the style and manner of the character in question (or as close as I can manage).
If there is no existing voice, or the song is not for an animated project, I will also provide a vocal track based on your requirements.

To be clear, I will not write lyrics or compose music for the song in question, just provide the lead vocals for your tune - in the necessary style.

The track will be sung to your specifications and emailed, to a provided address, for review. Minor alterations may be provided at no extra cost, larger (or further) corrections may facilitate a new purchase. Refunds will only be afforded in cases where I fail to produce anything (i.e. even if you later decide you don't want the track, I should still be paid for my efforts.)

The buyer retains all intellectual property rights to their music and lyrics. Clearly visible credits for my voice work are expected wherever it is utilised.