When you are choosing music for your productions, it is not always possible to get what you want, Sometimes the artist do not want there associated with the product or service the commercial offers, and sometimes the budget is not there.
This often ends up on a solution to make a soundalike, however, this is not always the best solution, the problem is that if you make a soundalike you end up pushing all the people who enjoy the original away from your commercial. So if you choose the track because target group it is better to walk far away from the song you wanted instead of trying to copy the emotion from the original track.
Here on www.findthetune.com you can search for well-known songs or public domain, in these categories you will find lots of music you already know. These songs have often been recorded in many different versions because they are accessible and no permission is needed to make a new version.