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Join Rock the Green for our 12th Annual (FREE) Earth Day Celebration

Presented by Milwaukee Riverkeeper


Saturday, April 22, Noon-3pm


Harley-Davidson Museum in the great outdoors

(400 W. Canal Street, 53201) Outside, rain or shine. Free parking, pets allowed outside on Museum grounds

The zero-waste Celebration features

Live concert on the famous pedal-powered stage featuring Rock the Stream 2020 alums SistaStrings and Klassik
Eco-education and from community nonprofits & partners
Earth Day Remarks from Milwaukee RiverkeeperHarley-Davidson, City of Milwaukee's Environmental Collaboration Office & Rock the Green
NEW for 2023: Rock the Outdoors area solar powered by Arch Electric featuring fam friendly action: Harley-Davidson electric-powered balance bike demos for kids, yoga sessions, Wisconsin Climbing Association & more
Presentation of Rock the Green's Dan Aukofer Earth Day Rockstar Award to Milwaukee Riverkeeper's Cheryl Nenn, celebrating 20 years of rockstar environmental dedication.
Tasty fare and bevs for purchase from Motor Bar & Restaurant 
FREE water, bring your water bottle


Milwaukee bred sisters, Monique (Vocals, Cello) and Chauntee Ross (Vocals, Violin), spent their entire music education not quite fitting any particular mold. Raised by two ministers, enrolled in conservatory at young ages, Monique and Chauntee embraced what made them different. Their art is meant to reflect their varying musical interests in a way that draws the listener in. Music becomes a journey and SistaStrings invites you to find your path.

Collaboration has been at the forefront of SistaStrings’ art. The sisters grew up playing their instruments in the church which is where their love of harmonies and improvisation was cultivated. Their entire childhood was immersed in music and making music with their peers in many different settings. It wasn’t until 2014 when both Monique and Chauntee moved back to their hometown, Milwaukee, WI when they began this project. They began exploring their sound as SistaStrings and collaborating with a variety of Milwaukee artist and found a strong creative community.

During their “discovery phase”, SistaStrings met and began to collaborate with fellow Milwaukeean Peter Mulvey. They’ve recorded two albums together, one of which is being released in 2022. 2021 opened a new chapter for the duo as they relocated to Nashville. They quickly found a sisterhood with Allison Russell and became family an
d collaborators. They are members of The Rainbow Coalition of the Loving, Russell’s touring band. Monique and Chauntee can also be found touring with Brandi Carlile Spring/Summer 2022. It’s no coincidence that collaboration is a strong point for the sisters. They believe that music and the arts reflect life and use their music to create opportunity for others and promote love and acceptance.

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Multi-instrumentalist producer/singer/rapper/songwriter from Milwaukee, WI, pulling from years of jazz saxophone study and music production to craft a unique blend of rap/jazz/soul. 

Klassik is as dexterous a rapper as he is an impassioned and soulful singer, often highlighted by his intense and incisive falsetto. All of this is intertwined with his own unique, personal and unbridled storytelling. With a penchant for curation and collaboration, which he likens to that of one of his biggest inspirations, Quincy Jones, Klassik’s production is crafted with intent, beauty and depth of musicality. 

Most recent album (QUIET, 2019) was named the #1 album of 2019 by the Milwaukee Journal Sentinel, and garnered awards for Best Solo Artist and Critic’s Choice for Album of the Year at the 2019 Radio Milwaukee Music Awards.


A true class act, Klassik works to stir the souls of listeners into action with empathy, passion, and purpose through his own self-reflective sonic art.

Eco-education from community nonprofits & orgs  

Alliance for the Great Lakes
Bublr Bikes
City of Milwaukee Environmental Collaboration Office

Friends of Grant Park
Friends of the Hank Aaron State Trail 
Milwaukee Bicycle Collective

Milwaukee Riverkeeper

Riveredge Nature Center

Our Future Milwaukee
River Revitalization Foundation

Southeastern Wisconsin Watersheds Trust

Rock the Green
The Park People
UWM School of Freshwater Sciences

Presentation of RTG's Dan Aukofer Earth Day Rockstar award to Milwaukee Riverkeeper's Cheryl Nenn

Before joining Milwaukee Riverkeeper, Cheryl consulted on environmental projects for the U.S. Forest Service; provided forestry and wildlife management planning for private landowners for the Michigan DNR and Dept. of Agriculture; and helped manage forest restoration, reforestation, and erosion control projects for the City of New York, Department of Parks and Recreation. She also served as a forestry extension/environmental education Peace Corps volunteer in Ecuador, and as a Crisis Corps volunteer in Honduras, helping with community rebuilding and reforestation projects after Hurricane Mitch.

As Riverkeeper, Cheryl identifies sources of pollution to Milwaukee’s rivers, actively patrols the rivers for issues of concern, and looks for collaborative solutions to these problems. Cheryl also manages our citizen-based water quality monitoring project, the Milwaukee Urban Water Trail, and various restoration and stormwater demonstration projects.

Cheryl serves on the Board of the Waterkeeper Alliance, as a Project Team leader for the Southeastern Wisconsin Watershed Trust (Sweet Water), and as a member of several Technical Advisory Committees for SEWRPC and WDNR relating to water quality and the Milwaukee River Estuary Area of Concern. She has a BS in Biology from the University of Illinois and an MS in Natural Resource Ecology and Management from the University of Michigan School of Natural Resources and Environment.

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