The organization's Penn State chapter announced the special guests Wednesday morning on Twitter.
All four pleading guilty on Tuesday were accused of playing a role in the alcohol-fueled bid acceptance night on Feb. 2, 2017 that precipitated the death of Timothy Piazza, a 19-year-old sophomore from Lebanon, N.J..
"What excites me about the forum event is that it gives students the chance to hear legislators focus on an issue that unites us all: the cost of higher education."
LaDuke ran for vice president as part of the Green Party in 1996 and 2000.
The successful sustainability initiative generated $2,129.60 in donations to three student organizations in 2018.
Penn State will celebrate Pride Month this April with a full agenda of events "to spread awareness about the LGBTQA community and educate the Penn State community about sexual and gender diversity."