That little piñata and the TV Land-stamped gold foil chocolates inside are the most fun thing that has popped up in the TVScreener.com mail so far this week. The festive package included the postcard with the sombrero-ed Joan Rivers wishing a Happy Cinco de Mayo, since today also marks the second season premiere of her TV Land series How’d You Get So Rich? (10PM ET).

“Hola, Sweetie,” writes the comedienne. “I can’t think of a better way to celebrate the Mexican army’s victory in the 1862 Battle of Puebla than by beating the crap out of this piñata, and watching the season premiere of my show, How’d You Get So Rich?” …

Hmmm, so that’s what Cinco de Mayo is all about …

Anyhoo, the second season of the series, which finds hostess Rivers pulling back the curtain on wealthy entrepreneurs and how they made their fortunes (and the decadent lifestyles they’re enjoying because of the cash), will include segments on John Paul DeJoria (the Paul Mitchell hair products dude) and the owner of the Patrón tequila company (who, spoiler alert, is the same guy!), Mrs. Fields (of mall cookie shop fame) and Donald Trump, who Rivers interviews in tonight’s premiere. Ever wonder how much cash The Donald carries in his wallet? Celebrity Apprentice winner Rivers finds out.

Among this season’s other profilees: three billionaires who, once upon a time, didn’t even have indoor plumbing; a Brooklyn ninth-grade dropout who makes $30 million a year with his doggie Wee Wee Pads; a hard partying guy who was once fired from McDonalds and later turned a pithy bit of advice from his father into a $100 million fortune as a sales expert and motivational speaker; the inventor of the Chia Pet and The Clapper; and Rivers herself, who has sold more than $750 million of her beauty products and jewelry on QVC.