Celebrity

[TGBlank]

Hmm, I had a sim gain a star from upgrading the fire alarm thingy (firefighter), I've also seen it happen through misc opportunities... hmm, you know what? I know exactly what would help.. gimme a second....

Celebrity Points

Celebrity stars are gained through celebrity points. You need to accumulate a certain number of points to unlock the next star level. Their chance of getting free things and discounts is also affected by the celebrity level.

Celebrity Level	|	Points	|	Freebie Chance	|	Discount Chance
1	|	100	|	0	|	20%
2	|	1500	|	10%	|	35%
3	|	2000	|	15%	|	50%
4	|	4000	|	20%	|	60%
5	|	6000	|	25%	|	70%

Friendship
Becoming friend with an existing celebrity grants points. 1000 points from reaching Friend, 500 at reaching Good Friend, 1000 for reaching Best Friend, and finally 1500 for reaching BFF.
To my knowledge, this is not retroactively applied. You get no stardom from already being a friend with someone before he or she reaches celebrity status.

Romance
Much like friendship, only it awards more points. 1100 for Romantic Interest, 1750 for Partner, 2000 for Fiance, and 3000 for Spouse.

Impressing a Celebrity
The impress celebrity action also grants points, how much points seem to depend on the level of the skill/profession/talent you are using to impress, but I can't quite make sense of this part of the xml. Impressing a lvl 1 celebrity seems to spawn at least 100 points.

I can't seem to find out how in the name of spode did my freshly-spawned firefighter simbot gained a celebrity level by just being there upgrading the fire alarm, either npc sims can be impressed by seeing another sim performing skills, or there is another xml somewhere else controlling such behavior, or said behavior is 100% script and not tunable through xml.
Sons and Daughters don't appear to have a special bonus, but their sudden early stardom may be caused by interacting with their parents.

The file does contain the data for determining the chance of getting discovered doing disgraceful actions (different for each action), and the list of items one can get as freebie.

Edit: table didn't wanted to cooperate, lousily cludged to improve visibility.

[athena]

Just two Qs about celebrity: (1) Can a child become a celebrity? (2) Can a Sim gain celebrity points by woohoo with a big celebrity (no commitments pls, since my Sim is commitment phobic). Thanks!

[aAa]

My celebrities get opportunities from this guy who claims to by the "agent".
I don't remember hiring one.

[TGBlank]

(1) Can a child become a celebrity?

Teen, definitely, child or lower, not sure.

(2) Can a Sim gain celebrity points by woohoo with a big celebrity (no commitments pls, since my Sim is commitment phobic).

Woohoo? no, becoming a romantic interest? yes.

[RubyLovesSims]

What town is it?

It's Twinbrooke, and I've added Waylons Haunt, Banzi louge, and the... non skyscraper Dance Club.

[RubyLovesSims]

What town is it?

[Anushka]

Child can become celeb, I just had one.

Can woohoo be done without romantic interest? I thought that after kissing, making out and specially woohoo, they automatically gain romantic interest. You don't have to go steady, propose marriage or move in. You don't have to romantically involve your Sim, once my Sim get 2 stars just for becoming friend with Matthew H. in BP, on her first day.

aAa, as soon as your Sim become celeb, you get an "agent" who is finding opportunities to help you become higher level celeb. You can't turn him off, but you can accept an opportunity and never fulfill it, and that will keep your phone silent.

TGBlank, great info! As you said, there are probably few more factors involved, but this is clear info which I appreciate!

[Pam]

It's Twinbrooke, and I've added Waylons Haunt, Banzi louge, and the... non skyscraper Dance Club.

Ah, ok.  You're talking about the little icons that are now in the lower right corner of the picture of all the towns on the Main Menu.  Sims 3 has started classifying all of the towns now.  Sunset Valley, Riverview, and Twinbrook are classified as suburbs and Bridgeport is a city.  It's just the type of town it is and has nothing to do with the buildings you install.

[Taxingwoman]

I don't know if others have experienced this. In Twinbrook it is really easy to become a celebrity. You don't need to impress celebrities. Just go up to any Sim that has even just one star, chat with them a bit, and you will become a 3 star celebrity in no time. Do a few opportunites  to earn points and then you become 4 star. Ignore the paparazzi and sell all the stuff you get as gifts.  One bonus that I like is you get lots of discounts. My one Sim is 4 star. He put a buffet table in one of the clubs he owns and there is no charge for the food!! So he can go out, get free drinks and food, and it also seems to attract more Sims to the place.     

[TGBlank]

I don't know if others have experienced this. In Twinbrook it is really easy to become a celebrity. You don't need to impress celebrities. Just go up to any Sim that has even just one star

That exactly is the problem people are having. It's very easy to become a celebrity... once you actually find another celebrity NPC (yes, a one-star sim is considered a celebrity). The game can take a while to spawn one, or it may happen to be some hermit that never gets out and the player never finds it.
This is not a problem in bridgeport, where several celebrity npcs are spawned by default.

[RubyLovesSims]

Ahh, right Pam. I heard somewhere that adding bars and such will turn them into Late Night Districs. So celebs and vampires still appear?

[TGBlank]

Celebs and vamps will eventually appear regardless of whether or not you add bars/clubs to the map... As long as you have story progression/aging on of course.
You can create bars & clubs and the like by either building one from scratch and setting the right lot type on edit town, or by importing the already built ones from the library into empty lots.

[athena]

How can children become celebrities? By impressing adult celebrities? Or just being a child of celebrities?

[RubyLovesSims]

I think if they have close contant with a celeb (Child, aunt, ect), they'll become one.

[Schipperke]

How can children become celebrities? By impressing adult celebrities? Or just being a child of celebrities?

If the parents are celebrities, all the kids have to do is interact with their parents (or any other relatives living in the house).  Molly in my Clan Douglas Dynasty was a 3-star celebrity the day after she became a child, just from talking to the other family members.