If the phrase "give until it hurts" means anything, country stars may be making a mass entry into Nashville hospitals in the near future, given the volume of charitable work in the pipeline.

Among the efforts underway with some connection to worthy causes are a CD, a wine-tasting, a multi-artist recording and several artists who've become spokespersons for special initiatives. The giving of time and talent includes the following:

Clover Country, an album raising money for the National 4-H Council, will be released March 25. The CD balances such classics as Johnny Cash's "I Walk The Line" and Glen Campbell's "Wichita Lineman" with more recent cuts, including Sugarland's "Baby Girl" and Luke Bryan's "We Rode In Trucks." "I was involved in every aspect of 4-H," says Reba McEntire, who contributes "You're Gonna Be." "I loved it with all my heart."

Kenny Chesney has joined the board of directors of PLAN!T NOW, Dial-Global reports. The agency, formerly known as the Grenada Relief Fund, is involved in disaster-preparedness awareness.

Martina McBride teams with Rod Stewart, James Taylor and Dionne Warwick on a piano-backed version of "What The World Needs Now Is Love" for Steve Tyrell's upcoming album Back To Bacharach. Country Digest reports the recording will aid research on colon cancer.

The ninth annual Best Cellars Dinner takes place April 7 in Nashville, with money earmarked for the T.J. Martell Foundation. At least two of the attendees have appropriate thematic connections to the event: Kix Brooks, of Brooks & Dunn, markets his own line of wines; and LeAnn Rimes' current single is "Good Friend And A Glass Of Wine." Also on the guest list are Martina McBride, Vince Gill, Amy Grant, Troy Gentry, Michelle Branch and Keith Anderson.

Lonestar, featuring new lead singer Cody Collins, performed a benefit concert last night at Hillsboro Elementary School in Tennessee's Williamson County, according to WKRN-TV.

Montgomery Gentry is taking a vocal role by joining with Clorox in a program to raise money for cancer research through the T.J. Martell Foundation. Eddie Montgomery counts four people who are close to him currently fighting the disease. "With the passing of my mother last year, the T.J. Martell Foundation now hits closer to home," Troy Gentry says. "Eddie and I are very fortunate to be in a position to help people."

Additionally, Rockie Lynne contributed the leadoff track to a new compilation CD that raises money for the survivors and families of victims of last year's I-35W Bridge collapse disaster in Minneapolis. Rockie, a longtime Minnesota resident, wrote, recorded and co-produced "The Chance To Say Goodbye" specifically for the project, put together by pro audio equipment manufacturer Electro-Voice (EV) and its parent company, Robert Bosch North America LLC. Other artists on the CD include Los Lobos, Stray Cats, Jim Lauderdale, Steve Vai, Bobby Bare Jr., Pete Anderson and Jason & The Scorchers.