Karrueche Tran, Chris Brown Engaged: Singer Planning On Winning Back Model After Instagram embarrassment?

Chris Brown's ex-girlfriend, Karrueche Tran may want an engagement ring for Christmas after sending subliminal messages on Instagram.

Monday, the 26-year-old posted a snap shot of Nicki Minaj's song "Get On Your Knees" on her Instagram and has fans wondering if she directed her caption, "Baby, just get on your knees" to her ex-boyfriend.

According to Hollywoodlife.com, the R&B crooner reportedly bought the heart stricken model an engagement ring but wants to make up for publicly embarrassing her.

Fans may have to keep on waiting for an engagement a little longer since Kae still admitted that they are no longer together. After popular website, TheShadeRoom posted that the couple were back together on their Instagram page, the 26-year-old decided to respond back, "No we are not."

The couple had an awkward moment over the weekend after they attended Jhene Aiko's concert in Los Angeles while the singer surprised fans and performed a duet of "Drunk Texting" with the singer as his ex looked on.

Saturday, the singer tweeted, "Idgaf! She look amazing right now," prompting rumors that he is back with the fashionista. The 25-year-old singer is still pleading to get his on-and-off again girlfriend back after he publicly humiliated her on Instagram last week.

Thursday, the singer posted a YouTube clip of his song and captioned it, "Mood for the night." In the song, Chris talked about Karrueche's partying ways and how he made her famous:

"Back and forth with the games/ Girl, you played me/ This ain't what I wanted/She say she only wanna party/Cause she in love with everybody."

In another line he sings:

"You with your girls/It's your night out/Stressing got me looking like a night owl/You a star now, all up on tv/I made you famous cause I put you in the streets."