@PinkPanther57
In theory, that would be possible, but such a spell would have much, much less chance of being successful than a spell with a more viable target.
My view is that magic doesn't work in a vacuum, it works in tandem with the nature of your current circumstance. Also, the stronger the spell is, the more chance it has of working as intended.
So if Brad Pitt/hypothetical billionaire are not already within your circle to some degree - or you don't live in a community/move in circles in which coming across them would be a plausible possibility - then a spell that's directed to get them to fall in love with you is going to be at a disadvantage/much less likely to be effective than a spell that's targeted at an individual you already know personally, or a non-targeted love spell that's not aimed at a specific individual (which means that anyone in your surrounding environment of the appropriate gender/desired qualities is a potential suitor.)
In certain magical traditions, spells are made stronger by what is called "personal concerns" or "personal links" - items related to or directly associated with the individual you're working the spell upon. The more personal the item, the stronger the spell, and more likely to be effective. The strongest personal link would be hair or bodily fluids from the individual, but it's not necessarily easy or possible to get those. Something they've used or touched or a sample of their writing would be a reasonably strong link, but weaker links are acceptable too - photographs of the individual, for example. If a photograph isn't possible, then a piece of paper with the name of the individual written on it can be used as a personal link, but it's significantly weaker than the other alternatives.