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 Today is a historic day for gay marriage, and the stars have taken to social media to share their reactions to the news. Ben Affleck, Leonardo DiCaprio, and Lena Dunham expressed their excitement, and Kristen Bell even proposed to Dax Shepard in a tweet! Take a look at stars' thoughtful responses to today's Supreme Court decisions on gay marriage! 

 Melissa Etheridge is engaged to Linda Wallem, the rocker revealed during a June 26 phone interview with CNN's Ashleigh Banfield. The revelation came just after the U.S. Supreme Court declared the Defense of Marriage Act "unconstitutional" and gave legally married same-sex couples the same federal rights as heterosexual couples. The High Court also overturned California's Proposition 8, a constitutional amendment that said the state would only recognize marriage as being "between a man and a woman." 
 
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 "It is about family and I love my four kids," Etheridge, 52, said. "I called my now-fiancee. I'm looking forward to marrying my partner of three years . . . I'm going to get married in the state of California. I woke [the kids] up this morning telling them the Supreme Court ruling on DOMA. . .I love everybody out there. It's a great day." 
 
 PHOTOS: Out and proud celebs 
 
 Etheridge added, "Love is love and America is beautiful. . . It's just an amazing, amazing day. I'm proud to be an American." 
 
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 The singer -- known for hits like "Come to My Window" and "I'm the Only One" -- also shared her engagement news via Twitter. "I look forward to exercising my American civil liberties and getting fully, completely and legally married this year to my true love of over three years, Linda Wallem," she wrote. 
 
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 Etheridge was previously in an eight-year partnership with actress Tammy Lynn Michaels. The exes share custody of 7-year-old twins Johnnie and Miller. The musician began dating Wallem, a 52-year-old sitcom writer, in 2010.
– With DOMA overturned and gay marriage legal in California, all those celebrities who said they weren't tying the knot until gay couples could do the same have had their bluff called. So far, at least one such couple appears to be moving forward with a wedding: Following the Supreme Court's DOMA ruling, Kristen Bell tweeted to longtime fiance (and the father of her baby) Dax Shepard, "@daxshepard1 will you marry me? Xo #marriageequality #loveislove." He replied, "DOMA is dead. Prop 8 is dead. Now let's bring my big, gay marriage to @IMKristenBell to Life!!!!" In related news, Melissa Etheridge proposed to girlfriend Linda Wallem following the DOMA ruling and they are now engaged, the rocker told CNN, according to Us. Click for more celeb reactions to the Supreme Court rulings.