David Hogg's ready for another major rally -- getting students nationwide to sign up for his political activism club.

We're told David and the March for Our Lives leaders will be launching a new platform for students to create school clubs and engage them in political activism. Here's how it'll go down -- students will be able to go on the MFOL's website and create a club for their school anywhere in the good ol' US of A.

From there ... students get support and help with:

-- Letter-writing campaigns to lawmakers

-- Hosting town halls

-- Planning future marches (like March for Our Lives)

-- Starting voter registration drives 

-- Supporting candidates who support the MFOL mission (either Democrat or Republican)

-- Helping students get on campaign trails 

It should be noted ... the club is nonpartisan. The goal's to give students the resources they need to get politically active and make it easy for them to become engaged. 

Conor McGregor spent the last part of the week behind bars after viciously attacking some fellow UFC fighters with a dolly, and Blac Chyna's also in trouble for hurling a stroller. So, we gotta ask ... 

Rich the Kid was like a mom in Target when he hit up the jewelry store -- he ended up leaving with way more than what was on his shopping list.

The rap star went to Mo Jooma -- owner of Atlanta's Icebox Diamonds & Watches -- last week to pick up a couple Rich Forever Music (RFM) pendants he'd ordered in honor of the success of his brand new album, "The World Is Yours."

We're told while he was there, Rich started browsing other bling, put on a chain with a shiny diamond Jesus piece and didn't want to take it off ... so he decided to buy that too.

He was telling people it made him feel like Kanye.

When it was all said and done, we're told the rapper's spending spree totaled around $80,000.

And we know the Kid didn't get finessed.

See which stars aren't afraid of some April showers by dripping into our gallery of these washed-up stars, and get a sprinkle of what's to come before May flowers can spring!  

4:15 PM PT -- Abrams lists the date of separation as August 29, 2017. He's also asking the court to terminate Garth's right to spousal support.Jennie Garth's third marriage is ending ... her husband has just filed for divorce ... TMZ has learned.

Dave Abrams filed for divorce Friday citing irreconcilable differences.  

The "90210" star and Abrams, also an actor, got hitched in July 2015. They have no kids together. She has 3 daughters from a previous marriage.

Jennie said back in November she and Dave were taking a break, but now it looks like forever.

Jennie was previously married to Daniel Clark and tried again with actor Peter Facinelli.

3:35 PM PT -- Kendra lists the date of separation as January 1, 2018 and is asking for joint legal and physical custody of their two kids. She also wants to legally restore Wilkinson as her last name. As for spousal support ... that'll be determined at a later time.

Kendra Wilkinson pulled the trigger on ending her marriage to NFL star Hank Baskett ... she just filed for divorce. 

Kendra filed papers Friday to end the matrimony. She cites irreconcilable differences as the reason for the divorce ... this according to legal docs obtained by TMZ.

They have two kids -- 8-year-old Hank IV and 3-year-old Alijah. They got married back in 2009 at the Playboy Mansion ... with the late Hugh Hefner in attendance.

As we reported ... Kendra posted several emotional videos Monday confirming the split. She broke down in tears ... saying she's scared but will always love Hank.

There had been rumors in recent months that Kendra and Hank's relationship was on the rocks, signaling a split was imminent. 

Story developing ...

John Barrowman was fuming after claiming he tried to help out a homeless guy in a Target store and was disciplined by employees.

Barrowman was at the Target in West Hollywood Thursday when he claims a homeless man approached him asking John if he could buy an $8 t-shirt for him. John says he was happy to help and also picked up a grooming kit, $40 gift card and other items for the man.

The "Arrow" actor claims he was approached by store employees at checkout who told him it was illegal to purchase items for the homeless in their store. Furious, John left the store.

. @target @targetstyle @targetdoesitagain I am disgusted by what I was told. Arrest me for trying to help someone. The stupidity behind that rule. I want an explanation. My fans and followers please message #Target regarding this. JB pic.twitter.com/pNZ3Sfy3qZ

— John Barrowman MBE (@JohnBarrowman) April 6, 2018

John reached out to Target on Twitter, they replied, "We’re very sorry for the experience you had at the LA Target store. We absolutely do not have a policy against this type of purchase, and are addressing it immediately with the team members involved. Thank you for bringing this to our attention."